blocks|key|2858875|text|似乎在PHP7.1中，如果遇到非数字值就会发出警告。请参阅此link。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|2858876|以下是与您收到的警告通知相关的部分：|2858877|当使用期望数字或其赋值等效项的运算符强制无效字符串时，|2858878|引入了新的E_WARNING和E_NOTICE错误。当字符串以数值开头但包含尾随的非数字字符时，将发出E_NOTICE；当字符串不包含数值时，将发出+E_WARNING。|blockquote|style|BOLD|2858879|2858880|2858881|我猜$item'quantity'或$product'price'都不包含数值，所以在尝试将它们相乘之前，请确保它们包含数值。在计算$sub_total之前，可以使用某种条件，如下所示：|2858882|<?php

if+(is_numeric($item['quantity'])+&&+is_numeric($product['price']))+{
++$sub_total+%2B=+($item['quantity']+*+$product['price']);
}+else+{
++//+do+some+error+handling...
}|code-block|syntax|javascript|2858883|entityMap|0|LINK|mutability|MUTABLE|url|http://php.net/manual/en/migration71.other-changes.php^0|U|4|0|0|0|0|22|B|0|0|0|2|F|I|F|0|0^^$0|@$1|2|3|4|5|6|7|13|8|@]|9|@$A|14|B|15|1|16]]|C|$]]|$1|D|3|E|5|6|7|17|8|@]|9|@]|C|$]]|$1|F|3|G|5|6|7|18|8|@]|9|@]|C|$]]|$1|H|3|I|5|J|7|19|8|@$A|1A|B|1B|K|L]]|9|@]|C|$]]|$1|M|3|-4|5|6|7|1C|8|@]|9|@]|C|$]]|$1|N|3|-4|5|6|7|1D|8|@]|9|@]|C|$]]|$1|O|3|P|5|6|7|1E|8|@$A|1F|B|1G|K|L]|$A|1H|B|1I|K|L]]|9|@]|C|$]]|$1|Q|3|R|5|S|7|1J|8|@]|9|@]|C|$T|U]]|$1|V|3|-4|5|6|7|1K|8|@]|9|@]|C|$]]]|W|$X|$5|Y|Z|10|C|$11|12]]]]

It seems that in PHP 7.1, a Warning will be emitted if a non-numeric value is encountered. See this <a href="http://php.net/manual/en/migration71.other-changes.php" rel="noreferrer">link</a>.

Here is the relevant portion that pertains to the Warning notice you are getting:

<blockquote>
 New E_WARNING and E_NOTICE errors have been introduced when invalid
 strings are coerced using operators expecting numbers or their
 assignment equivalents. An E_NOTICE is emitted when the string begins
 with a numeric value but contains trailing non-numeric characters, and
 an E_WARNING is emitted when the string does not contain a numeric
 value.
</blockquote>

I'm guessing either $item['quantity'] or $product['price'] does not contain a numeric value, so make sure that they do before trying to multiply them. Maybe use some sort of conditional before calculating the $sub_total, like so:

<pre><code>&lt;?php

if (is_numeric($item['quantity']) &amp;&amp; is_numeric($product['price'])) {
 $sub_total += ($item['quantity'] * $product['price']);
} else {
 // do some error handling...
}
</code></pre>

blocks|key|2858885|text|尝尝这个。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2858886|$sub_total+=+0;|code-block|syntax|javascript|2858887|在您的循环中，现在可以使用以下代码|2858888|$sub_total+%2B=+($item['quantity']+*+$product['price']);|2858889|它应该能解决你的问题。|2858890|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|S|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

Try this.

<pre><code>$sub_total = 0;
</code></pre>

and within your loop now you can use this

<pre><code>$sub_total += ($item['quantity'] * $product['price']);
</code></pre>

It should solve your problem.

blocks|key|2858912|text|你可以在没有任何新逻辑的情况下解决这个问题，只需将事物转换为数字，这可以防止出现警告，并且等同于PHP+7.0和更低版本中的行为：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2858913|$sub_total+%2B=+((int)$item['quantity']+*+(int)$product['price']);|code-block|syntax|javascript|2858914|(+Daniel+Schroeder的答案并不等价，因为如果遇到非数字值，$sub_total将保持未设置状态。例如，如果您打印出$sub_total，您将得到一个空字符串，这在发票中可能是错误的。-通过强制转换，确保$sub_total是一个整数。)|2858915|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

You can solve the problem without any new logic by just casting the thing into the number, which prevents the warning and is equivalent to the behavior in PHP 7.0 and below:

<pre><code>$sub_total += ((int)$item['quantity'] * (int)$product['price']);
</code></pre>

(The answer from Daniel Schroeder is not equivalent because $sub_total would remain unset if non-numeric values are encountered. For example, if you print out $sub_total, you would get an empty string, which is probably wrong in an invoice. - by casting you make sure that $sub_total is an integer.)

blocks|key|2647631|text|与你遇到的问题不完全一样，但人们在搜索时也会出现同样的错误。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2647632|当我在JavaScript上花了太多时间时，这种情况就发生在我身上。|2647633|回到PHP，我用%2B而不是.连接了两个字符串，得到了那个错误。|offset|length|style|CODE|2647634|entityMap^0|0|0|8|1|C|1|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|M|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|N|8|@$F|O|G|P|H|I]|$F|Q|G|R|H|I]]|9|@]|A|$]]|$1|J|3|-4|5|6|7|S|8|@]|9|@]|A|$]]]|K|$]]

Not exactly the issue you had but the same error for people searching.
This happened to me when I spent too much time on JavaScript.
Coming back to PHP I concatenated two strings with <code>+</code> instead of <code>.</code> and got that error.

blocks|key|108570|text|如果你没有用某个变量递增，检查它的值是不是像'‘这样的空字符串。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|108571|示例：|108572|$total+=+'';
$integers+=+range(1,+5);

foreach($integers+as+$integer)+{
++++$total+%2B=+$integer;
}|code-block|syntax|javascript|108573|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|L|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|M|8|@]|9|@]|A|$G|H]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

Check if you're not incrementing with some variable that its value is an empty string like ''.

Example:

<pre><code>$total = '';
$integers = range(1, 5);

foreach($integers as $integer) {
 $total += $integer;
}
</code></pre>

blocks|key|106372|text|当我有这个问题的时候，我只是看了这一页。对于我来说，我从一个数组中计算出了浮点数，但即使在将变量指定为浮点数之后，仍然给出了错误，下面是导致问题的简单修复和示例代码。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|106373|示例PHP|106374|<?php
$subtotal+=+0;+//Warning+fixed
$shippingtotal+=+0;+//Warning+fixed

$price+=+array($row3['price']);
$shipping+=+array($row3['shipping']);
$values1+=+array_sum($price);
$values2+=+array_sum($shipping);
(float)$subtotal+%2B=+$values1;+//+float+is+irrelevant+$subtotal+creates+warning
(float)$shippingtotal+%2B=+$values2;+//+float+is+irrelevant+$shippingtotal+creates+warning
?>|code-block|syntax|javascript|106375|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|L|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|M|8|@]|9|@]|A|$G|H]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

I just looked at this page as I had this issue. For me I had floating point numbers calculated from an array but even after designating the variables as floating points the error was still given, here's the simple fix and example code underneath which was causing the issue.

Example PHP

<pre><code>&lt;?php
$subtotal = 0; //Warning fixed
$shippingtotal = 0; //Warning fixed

$price = array($row3['price']);
$shipping = array($row3['shipping']);
$values1 = array_sum($price);
$values2 = array_sum($shipping);
(float)$subtotal += $values1; // float is irrelevant $subtotal creates warning
(float)$shippingtotal += $values2; // float is irrelevant $shippingtotal creates warning
?&gt;
</code></pre>

blocks|key|105978|text|$sn+=+0;//increment+the+serial+number,+then+add+the+sn+to+job
for($x+=+0;+$x<20;+$x%2B%2B)
{
$sn%2B%2B;
$added_date+=+"10/10/10";
$job_title+=+"new+job";
$salary+=+$sn*1000;
$cd+=+"27/10/2017";//the+closing+date
$ins+=+"some+institution";//the+institution+for+the+vacancy+
$notes+=+"some+notes+here";//any+notes+about+the+jobs

$sn_div+=+"<div+class='sn_div'>".$sn."</div>";
$ad_div+=+"<div+class='ad_div'>".$added_date."</div>";
$job_div+=+"<div+class='job_div'>".$job_title."</div>";
$salary_div+=+"<div+class='salary_div'>".$salary."</div>";
$cd_div+=+"<div+class='cd_div'>".$cd."</div>";//cd+means+closing+date
$ins_div+=+"<div+class='ins_div'>".$ins."</div>";//ins+means+institution
$notes_div+=+"<div+class='notes_div'>".$notes."</div>";


/*erroneous+line*/$job_no+=+"job"%2B$sn;//to+create+the+job+rows
$$job_no+=+"<div+class='job_wrapper'>".$sn_div.$ad_div.$job_div.$salary_div.$cd_div.$ins_div.$notes_div."</div>";

echo+$$job_no;//and+then+echo+each+job

}|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|105979|这就是我用来循环和创建新的html+div元素的代码。代码运行良好，元素也形成了，但我在error_log中得到了同样的警告。|unstyled|105980|在阅读了其他有用的答案后，我认为我在错误的行中总结了一个字符串和一个数字。因此我将该行的代码更改为|105981|/*erroneous+line*/$job_no+=+"job"&&$sn;//this+is+the+new+variable+that+will+create+the+job+rows|105982|现在，代码可以像以前一样工作，但这次没有警告。希望这个例子对某些人有用。|105983|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|P|8|@]|9|@]|A|$]]|$1|G|3|H|5|F|7|Q|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|R|8|@]|9|@]|A|$B|C]]|$1|K|3|L|5|F|7|S|8|@]|9|@]|A|$]]|$1|M|3|-4|5|F|7|T|8|@]|9|@]|A|$]]]|N|$]]

<pre><code>$sn = 0;//increment the serial number, then add the sn to job
for($x = 0; $x&lt;20; $x++)
{
$sn++;
$added_date = "10/10/10";
$job_title = "new job";
$salary = $sn*1000;
$cd = "27/10/2017";//the closing date
$ins = "some institution";//the institution for the vacancy 
$notes = "some notes here";//any notes about the jobs

$sn_div = "&lt;div class='sn_div'&gt;".$sn."&lt;/div&gt;";
$ad_div = "&lt;div class='ad_div'&gt;".$added_date."&lt;/div&gt;";
$job_div = "&lt;div class='job_div'&gt;".$job_title."&lt;/div&gt;";
$salary_div = "&lt;div class='salary_div'&gt;".$salary."&lt;/div&gt;";
$cd_div = "&lt;div class='cd_div'&gt;".$cd."&lt;/div&gt;";//cd means closing date
$ins_div = "&lt;div class='ins_div'&gt;".$ins."&lt;/div&gt;";//ins means institution
$notes_div = "&lt;div class='notes_div'&gt;".$notes."&lt;/div&gt;";


/*erroneous line*/$job_no = "job"+$sn;//to create the job rows
$$job_no = "&lt;div class='job_wrapper'&gt;".$sn_div.$ad_div.$job_div.$salary_div.$cd_div.$ins_div.$notes_div."&lt;/div&gt;";

echo $$job_no;//and then echo each job

}
</code></pre>

that's the code I had which looped and created new html div elements. The code worked fine and the elements were formed, but i got the same warning in the error_log.

After reading the useful other answers, I figured that I was summing up a string and a number in the erroneous line. So I changed the code at that line to

<pre><code>/*erroneous line*/$job_no = "job"&amp;&amp;$sn;//this is the new variable that will create the job rows
</code></pre>

Now the code works as earlier but with no warnings this time. Hope this example would be useful to someone.

blocks|key|108612|text|在WordPress上解决此错误|type|unstyled|depth|inlineStyleRanges|entityRanges|data|108613|108614|警告:在第694行的C:\XAMPP\htdocs\aad-2\wp-includes\SimplePie\Parse\Date.php中遇到非数字值|blockquote|108615|108616|108617|这里有一个简单的解决方案！|108618|找到wp-includes\SimplePie\Parse\Date.php|offset|length|style|CODE|108619|find+a+file+of+a+line+no.694|unordered-list-item|108620|ordered-list-item|108621|，然后显示代码$second+=+round($match[6]+%2B+$match[7]+/+pow(10,+strlen($match[7])));+|108622|并将其更改为3。)到这一行$second+=+round((int)$match[6]+%2B+(int)$match[7]+/+pow(10,+strlen($match[7])));|108623|108624|108625|entityMap^0|0|0|0|0|0|0|2|10|0|0|0|7|1W|0|D|26|0|0|0^^$0|@$1|2|3|4|5|6|7|12|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|13|8|@]|9|@]|A|$]]|$1|C|3|D|5|E|7|14|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|15|8|@]|9|@]|A|$]]|$1|G|3|-4|5|6|7|16|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|17|8|@]|9|@]|A|$]]|$1|J|3|K|5|6|7|18|8|@$L|19|M|1A|N|O]]|9|@]|A|$]]|$1|P|3|Q|5|R|7|1B|8|@]|9|@]|A|$]]|$1|S|3|-4|5|T|7|1C|8|@]|9|@]|A|$]]|$1|U|3|V|5|T|7|1D|8|@$L|1E|M|1F|N|O]]|9|@]|A|$]]|$1|W|3|X|5|T|7|1G|8|@$L|1H|M|1I|N|O]]|9|@]|A|$]]|$1|Y|3|-4|5|6|7|1J|8|@]|9|@]|A|$]]|$1|Z|3|-4|5|6|7|1K|8|@]|9|@]|A|$]]|$1|10|3|-4|5|6|7|1L|8|@]|9|@]|A|$]]]|11|$]]

Solve this error on WordPress

<blockquote>
 Warning: A non-numeric value encountered in C:\XAMPP\htdocs\aad-2\wp-includes\SimplePie\Parse\Date.php on line 694
</blockquote>

Simple solution here! 

<ol>
<li>locate a file of <code>wp-includes\SimplePie\Parse\Date.php</code></li>
<li>find a line no. 694</li>
<li>you show the code <code>$second = round($match[6] + $match[7] / pow(10, strlen($match[7])));</code> </li>
<li>and change this 3.) to this line <code>$second = round((int)$match[6] + (int)$match[7] / pow(10, strlen($match[7])));</code></li>
</ol>

blocks|key|108496|text|在我的例子中，这是因为我像在其他语言中一样使用了%2B，但是在PHP中，连接操作符是.。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|108497|entityMap^0|O|1|14|1|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]|$9|K|A|L|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|M|8|@]|D|@]|E|$]]]|G|$]]

In my case it was because of me used <code>+</code> as in other language but in PHP strings concatenation operator is <code>.</code>.

blocks|key|106397|text|这是发生在我身上的特别是在PHPMyAdmin上。因此，为了更具体地回答this，我做了以下操作：|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|106398|在文件中：|106399|C:\ampps\phpMyAdmin\libraries\DisplayResults.class.php|code-block|syntax|javascript|106400|我改变了这一点：|106401|//+Move+to+the+next+page+or+to+the+last+one
$endpos+=+$_SESSION['tmpval']['pos']
++++%2B+$_SESSION['tmpval']['max_rows'];|106402|要这样做：|106403|$endpos+=+0;
if+(!empty($_SESSION['tmpval']['pos'])+&&+is_numeric($_SESSION['tmpval']['pos']))+{
++++$endpos+%2B=+$_SESSION['tmpval']['pos'];
}
if+(!empty($_SESSION['tmpval']['max_rows'])+&&+is_numeric($_SESSION['tmpval']['max_rows']))+{
++++$endpos+%2B=+$_SESSION['tmpval']['max_rows'];
}|106404|希望救星是个麻烦的人...|106405|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/questions/43282813/phpmyadmin-error-when-selecting-rows-from-table?noredirect=1&lq=1^0|10|4|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|12|8|@]|9|@$A|13|B|14|1|15]]|C|$]]|$1|D|3|E|5|6|7|16|8|@]|9|@]|C|$]]|$1|F|3|G|5|H|7|17|8|@]|9|@]|C|$I|J]]|$1|K|3|L|5|6|7|18|8|@]|9|@]|C|$]]|$1|M|3|N|5|H|7|19|8|@]|9|@]|C|$I|J]]|$1|O|3|P|5|6|7|1A|8|@]|9|@]|C|$]]|$1|Q|3|R|5|H|7|1B|8|@]|9|@]|C|$I|J]]|$1|S|3|T|5|6|7|1C|8|@]|9|@]|C|$]]|$1|U|3|-4|5|6|7|1D|8|@]|9|@]|C|$]]]|V|$W|$5|X|Y|Z|C|$10|11]]]]

This was happening to me specifically on PHPMyAdmin. So to more specifically answer <a href="https://stackoverflow.com/questions/43282813/phpmyadmin-error-when-selecting-rows-from-table?noredirect=1&amp;lq=1">this</a>, I did the following:

In File:

<pre><code>C:\ampps\phpMyAdmin\libraries\DisplayResults.class.php
</code></pre>

I changed this:

<pre><code>// Move to the next page or to the last one
$endpos = $_SESSION['tmpval']['pos']
 + $_SESSION['tmpval']['max_rows'];
</code></pre>

To this:

<pre><code>$endpos = 0;
if (!empty($_SESSION['tmpval']['pos']) &amp;&amp; is_numeric($_SESSION['tmpval']['pos'])) {
 $endpos += $_SESSION['tmpval']['pos'];
}
if (!empty($_SESSION['tmpval']['max_rows']) &amp;&amp; is_numeric($_SESSION['tmpval']['max_rows'])) {
 $endpos += $_SESSION['tmpval']['max_rows'];
}
</code></pre>

Hope that save's someone some trouble...

blocks|key|2859037|text|$sub_total_price+=+0;+

foreach($booking_list+as+$key=>$value)+{
++++++++$sub_total_price+%2B=+($price+*+$quantity);+
}

echo+$sub_total_price;|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|2859038|它100%25正常工作:)|unstyled|2859039|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|J|8|@]|9|@]|A|$]]|$1|G|3|-4|5|F|7|K|8|@]|9|@]|A|$]]]|H|$]]

<pre><code>$sub_total_price = 0; 

foreach($booking_list as $key=&gt;$value) {
 $sub_total_price += ($price * $quantity); 
}

echo $sub_total_price;
</code></pre>

it's working 100% :)

blocks|key|2859060|text|我的分页向前和向后链接有这个问题……只需在变量$Page%2B1前面设置(int+)，它就起作用了…|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2859061|<?php+
$Page+=+(isset($_GET['Page'])+?+$_GET['Page']+:+'');
if+((int)$Page%2B1<=$PostPagination)+{
?>
<li>+<a+href="Index.php?Page=<?php+echo+$Page%2B1;+?>">+&raquo;</a></li>
<?php+}
?>|code-block|syntax|javascript|2859062|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

I had this issue with my pagination forward and backward link .... simply set (int ) in front of the variable $Page+1 and it worked... 

<pre><code>&lt;?php 
$Page = (isset($_GET['Page']) ? $_GET['Page'] : '');
if ((int)$Page+1&lt;=$PostPagination) {
?&gt;
&lt;li&gt; &lt;a href="Index.php?Page=&lt;?php echo $Page+1; ?&gt;"&gt; &amp;raquo;&lt;/a&gt;&lt;/li&gt;
&lt;?php }
?&gt;
</code></pre>

blocks|key|108678|text|这种情况通常发生在你用%2B号替换字符串的时候。在PHP中，您可以使用点符号(.)进行连接所以有时候我在PHP中不小心把%2B符号放在两个字符串之间，它会显示这个错误，因为你只能用%2B符号输入数字。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|108679|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

That's happen usually when you con-cat strings with + sign. In PHP you can make concatenation using dot sign (.) So sometimes I accidentally put + sign between two strings in PHP, and it show me this error, since you can use + sign in numbers only.

blocks|key|2859107|text|我在phpmyadmin的PHP7.3中遇到了这个问题。谢谢@coderama，我将libraries/DisplayResults.class.php第855行从|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2859108|//+Move+to+the+next+page+or+to+the+last+one
$endpos+=+$_SESSION['tmpval']['pos']
++++%2B+$_SESSION['tmpval']['max_rows'];|code-block|syntax|javascript|2859109|转到|2859110|//+Move+to+the+next+page+or+to+the+last+one
$endpos+=+(int)$_SESSION['tmpval']['pos']
++++%2B+(int)$_SESSION['tmpval']['max_rows'];|2859111|已修复。|2859112|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|S|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

I encountered the issue in phpmyadmin with PHP 7.3. Thanks @coderama, I changed libraries/DisplayResults.class.php line 855 from

<pre><code>// Move to the next page or to the last one
$endpos = $_SESSION['tmpval']['pos']
 + $_SESSION['tmpval']['max_rows'];
</code></pre>

into

<pre><code>// Move to the next page or to the last one
$endpos = (int)$_SESSION['tmpval']['pos']
 + (int)$_SESSION['tmpval']['max_rows'];
</code></pre>

Fixed.

blocks|key|2647921|text|确保您的列结构为INT。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2647922|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

Make sure that your column structure is INT.

blocks|key|106470|text|如果在代码中遇到非数字值，请尝试使用小于1的值。下面的代码被转换成了浮点型。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|106471|$PlannedAmount+=+'';+//+empty+string+''

if(!is_numeric($PlannedAmount))+{
+++++++++++$PlannedAmount+=+floatval($PlannedAmount);
+}

+echo+$PlannedAmount;+//output+=+0|code-block|syntax|javascript|106472|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

If non-numeric value encountered in your code try below one.
The below code is converted to float.

<pre><code>$PlannedAmount = ''; // empty string ''

if(!is_numeric($PlannedAmount)) {
 $PlannedAmount = floatval($PlannedAmount);
 }

 echo $PlannedAmount; //output = 0
</code></pre>

blocks|key|2647971|text|在PHP中，如果你使用%2B进行连接，你会得到这个错误。在php中，%2B是一个算术运算符。https://www.php.net/manual/en/language.operators.arithmetic.php|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|2647972|%2B运算符的错误用法：|2647973|++++++++++++"<label+for='content'>Content:</label>"%2B
++++++++++++"<textarea+class='form-control+col-xs-12'+rows='7'cols='100'+id='content'+name='content'>"%2B$initcontent%2B"</textarea>'"%2B+++++++++++++++++
++++++++++++"</div>";|code-block|syntax|javascript|2647974|使用.进行连接|2647975|$output+=+"<div+class='from-group'>".
++++++++++++"<label+for='content'>Content:</label>".
++++++++++++"<textarea+class='form-control+col-xs-12'+rows='7'cols='100'+id='content'+name='content'>".$initcontent."</textarea>'".+++++++++++++++++
++++++++++++"</div>";|2647976|entityMap|0|LINK|mutability|MUTABLE|url|https://www.php.net/manual/en/language.operators.arithmetic.php^0|B|1|W|1|10|2|16|1R|0|0|0|A|0|0|2|1|0|0^^$0|@$1|2|3|4|5|6|7|Y|8|@$9|Z|A|10|B|C]|$9|11|A|12|B|C]|$9|13|A|14|B|C]]|D|@$9|15|A|16|1|17]]|E|$]]|$1|F|3|G|5|6|7|18|8|@$9|19|A|1A|B|C]]|D|@]|E|$]]|$1|H|3|I|5|J|7|1B|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|1C|8|@$9|1D|A|1E|B|C]]|D|@]|E|$]]|$1|O|3|P|5|J|7|1F|8|@]|D|@]|E|$K|L]]|$1|Q|3|-4|5|6|7|1G|8|@]|D|@]|E|$]]]|R|$S|$5|T|U|V|E|$W|X]]]]

in PHP if you use + for concatenation you will end up with this error. In php + is a arithmetic operator.
 <a href="https://www.php.net/manual/en/language.operators.arithmetic.php" rel="nofollow noreferrer">https://www.php.net/manual/en/language.operators.arithmetic.php</a>

wrong use of + operator:

<pre><code> "&lt;label for='content'&gt;Content:&lt;/label&gt;"+
 "&lt;textarea class='form-control col-xs-12' rows='7'cols='100' id='content' name='content'&gt;"+$initcontent+"&lt;/textarea&gt;'"+ 
 "&lt;/div&gt;";
</code></pre>

use . for concatenation

<pre><code>$output = "&lt;div class='from-group'&gt;".
 "&lt;label for='content'&gt;Content:&lt;/label&gt;".
 "&lt;textarea class='form-control col-xs-12' rows='7'cols='100' id='content' name='content'&gt;".$initcontent."&lt;/textarea&gt;'". 
 "&lt;/div&gt;";
</code></pre>

blocks|key|106083|text|你好，在我的例子中使用(WordPress)和PHP7.4我得到了一个关于数值问题的警告。因此，我按如下方式更改了旧代码：|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|106084|来自：的|106085|$val+=+$oldval+%2B+$val;|CODE|106086|To:|106087|$val+=+((int)$oldval+%2B+(int)$val);|106088|现在警告消失了:)|106089|entityMap^0|0|3|0|0|0|M|0|M|0|0|3|0|0|Y|0|Y|0|0|9|0^^$0|@$1|2|3|4|5|6|7|S|8|@$9|T|A|U|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|V|8|@]|D|@]|E|$]]|$1|H|3|I|5|6|7|W|8|@$9|X|A|Y|B|C]|$9|Z|A|10|B|J]]|D|@]|E|$]]|$1|K|3|L|5|6|7|11|8|@$9|12|A|13|B|C]]|D|@]|E|$]]|$1|M|3|N|5|6|7|14|8|@$9|15|A|16|B|C]|$9|17|A|18|B|J]]|D|@]|E|$]]|$1|O|3|P|5|6|7|19|8|@$9|1A|A|1B|B|C]]|D|@]|E|$]]|$1|Q|3|-4|5|6|7|1C|8|@]|D|@]|E|$]]]|R|$]]

Hello,
In my case using (WordPress) and PHP7.4 I get a warning about numeric value issue. So I changed the old code as follow:

From:

<code>$val = $oldval + $val;</code>

To:

<code>$val = ((int)$oldval + (int)$val);</code>

Now the warning disappeared :)

blocks|key|2859208|text|您需要验证您正在处理的是一个数字：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2859209|+if+(is_numeric($item['quantity']))+{
+if+(is_numeric($product['price']))+{
++++echo+$item['quantity']+*+$product['price'];
+}+else+{
++++echo+$item['quantity'].+$product['price'];
+}
+}+else+{
++++echo+$item['quantity'].+$product['price'];
+}|code-block|syntax|javascript|2859210|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

You need to verify that you are dealing with a number:
<pre><code> if (is_numeric($item['quantity'])) {
 if (is_numeric($product['price'])) {
 echo $item['quantity'] * $product['price'];
 } else {
 echo $item['quantity']. $product['price'];
 }
 } else {
 echo $item['quantity']. $product['price'];
 }
</code></pre>

blocks|key|108633|text|$sub_total+%2B=+($item['quantity']+*+$product['price']);|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|108634|替换为：|unstyled|108635|$sub_total+%2B=+floatval($item['quantity'])+*+floatval($product['price']);|108636|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|L|8|@]|9|@]|A|$]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$B|C]]|$1|I|3|-4|5|F|7|N|8|@]|9|@]|A|$]]]|J|$]]

<pre><code>$sub_total += ($item['quantity'] * $product['price']);
</code></pre>
replace by:
<pre><code>$sub_total += floatval($item['quantity']) * floatval($product['price']);
</code></pre>

blocks|key|106141|text|在使用number_format()方法添加了两个格式化的变量后，我收到了这个错误。原因是，除非您将可选的分隔符参数指定为null，否则此方法通常使用分隔符格式化您的数字。例如，假设我有以下代码：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|106142|$subtotal+=+6556.7;
$vat+=+number_format(0.175+*+$subtotal,+2);++++++++++++//+1,147.42
$transactionfee+=+number_format(0.02+*+$subtotal,+2);++//+131.13
$total+=+$subtotal+%2B+$vat+%2B+$transactionfee;+++++++++++//+6556.7+%2B+1,147.42+%2B+131.13+=+ERROR|code-block|syntax|javascript|106143|这将触发以下错误，因为其中一个变量包含的,对于浮点型无效：|106144|106145|+警告：遇到非数字值...|blockquote|BOLD|106146|106147|106148|number_format()方法具有以下方法签名：|106149|106150|+number_format(number,decimals,decimalpoint,separator).|106151|106152|106153|通过将分隔符参数指定为''，可以修复此错误，如下所示：|106154|$subtotal+=+6556.7;
$vat+=+number_format(0.175+*+$subtotal,+2,+'.',+'');+++++++++++//1147.42
$transactionfee+=+number_format(0.02+*+$subtotal,+2,+'.',+'');+//131.13
$total+=+$subtotal+%2B+$vat+%2B+$transactionfee;+++//+//+6556.7+%2B+1147.42+%2B+131.13+=+7835.25|106155|entityMap|0|LINK|mutability|MUTABLE|url|https://www.w3schools.com/php/func_string_number_format.asp^0|1P|4|3|F|0|0|0|K|1|0|0|1|2|0|0|0|0|F|0|0|1|1H|0|0|0|B|2|0|0^^$0|@$1|2|3|4|5|6|7|1C|8|@$9|1D|A|1E|B|C]]|D|@$9|1F|A|1G|1|1H]]|E|$]]|$1|F|3|G|5|H|7|1I|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|1J|8|@$9|1K|A|1L|B|C]]|D|@]|E|$]]|$1|M|3|-4|5|6|7|1M|8|@]|D|@]|E|$]]|$1|N|3|O|5|P|7|1N|8|@$9|1O|A|1P|B|Q]]|D|@]|E|$]]|$1|R|3|-4|5|6|7|1Q|8|@]|D|@]|E|$]]|$1|S|3|-4|5|6|7|1R|8|@]|D|@]|E|$]]|$1|T|3|U|5|6|7|1S|8|@$9|1T|A|1U|B|C]]|D|@]|E|$]]|$1|V|3|-4|5|6|7|1V|8|@]|D|@]|E|$]]|$1|W|3|X|5|P|7|1W|8|@$9|1X|A|1Y|B|C]]|D|@]|E|$]]|$1|Y|3|-4|5|6|7|1Z|8|@]|D|@]|E|$]]|$1|Z|3|-4|5|6|7|20|8|@]|D|@]|E|$]]|$1|10|3|11|5|6|7|21|8|@$9|22|A|23|B|C]]|D|@]|E|$]]|$1|12|3|13|5|H|7|24|8|@]|D|@]|E|$I|J]]|$1|14|3|-4|5|6|7|25|8|@]|D|@]|E|$]]]|15|$16|$5|17|18|19|E|$1A|1B]]]]

I received this error after adding two formatted variables using the <a href="https://www.w3schools.com/php/func_string_number_format.asp" rel="nofollow noreferrer">number_format()</a> method. The reason is because this method usually formats your number with a <code>,</code> unless you specified the optional separator argument as <code>null</code>. For example, let's say I have the following code:
<pre><code>$subtotal = 6556.7;
$vat = number_format(0.175 * $subtotal, 2); // 1,147.42
$transactionfee = number_format(0.02 * $subtotal, 2); // 131.13
$total = $subtotal + $vat + $transactionfee; // 6556.7 + 1,147.42 + 131.13 = ERROR
</code></pre>
This would trigger the following error because one of the variables contains a <code>,</code> which is invalid for a float type:
<blockquote>
Warning: A non-numeric value encountered ...
</blockquote>
The <code>number_format()</code> method has the following method signature:
<blockquote>
<code>number_format(number,decimals,decimalpoint,separator)</code>.
</blockquote>
By specifying the separator argument as <code>''</code>, this error could be fixed as follows:
<pre><code>$subtotal = 6556.7;
$vat = number_format(0.175 * $subtotal, 2, '.', ''); //1147.42
$transactionfee = number_format(0.02 * $subtotal, 2, '.', ''); //131.13
$total = $subtotal + $vat + $transactionfee; // // 6556.7 + 1147.42 + 131.13 = 7835.25
</code></pre>

Recently updated to PHP 7.1 and start getting following error

<blockquote>
 Warning: A non-numeric value encountered in on line 29
</blockquote>

Here is what line 29 looks like

<pre><code>$sub_total += ($item['quantity'] * $product['price']);
</code></pre>

On localhost all works fine..

Any ideas how to tackle this or what it is ?

Warning: A non-numeric value encountered

WordPress

最近更新到PHP 7.1，并开始收到以下错误警告:在第29行遇到非数字值下面是第29行的内容$sub_total += ($item['quantity'] * $product['price']);有什么办法解决这个问题吗?或者是什么？

问警告:遇到非数字值
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