blocks|key|1339827|text|如果你的目标是"11223344"，那么使用str_replace|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1339828|//+str_replace($search,+$replace,+$subject)
echo+str_replace("11223344",+"","REGISTER+11223344+here");|code-block|syntax|javascript|1339829|entityMap|0|LINK|mutability|MUTABLE|url|http://us.php.net/str_replace^0|M|B|M|B|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@$9|T|A|U|B|C]]|D|@$9|V|A|W|1|X]]|E|$]]|$1|F|3|G|5|H|7|Y|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Z|8|@]|D|@]|E|$]]]|L|$M|$5|N|O|P|E|$Q|R]]]]

If you're specifically targetting "11223344", then use <a href="http://us.php.net/str_replace" rel="noreferrer"><code>str_replace</code></a>:

<pre><code>// str_replace($search, $replace, $subject)
echo str_replace("11223344", "","REGISTER 11223344 here");
</code></pre>

blocks|key|1339928|text|您可以使用str_replace()，它的定义如下：|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1339929|str_replace($search,+$replace,+$subject)|code-block|syntax|javascript|1339930|因此，您可以将代码编写为：|1339931|$subject+=+'REGISTER+11223344+here'+;
$search+=+'11223344'+;
$trimmed+=+str_replace($search,+'',+$subject)+;
echo+$trimmed+;|1339932|如果您需要通过正则表达式进行更好的匹配，您可以使用preg_replace()。|1339933|entityMap|0|LINK|mutability|MUTABLE|url|http://php.net/manual/en/function.str-replace.php|1|http://us2.php.net/manual/en/function.preg-replace.php^0|5|D|0|0|0|0|0|P|E|1|0^^$0|@$1|2|3|4|5|6|7|Y|8|@]|9|@$A|Z|B|10|1|11]]|C|$]]|$1|D|3|E|5|F|7|12|8|@]|9|@]|C|$G|H]]|$1|I|3|J|5|6|7|13|8|@]|9|@]|C|$]]|$1|K|3|L|5|F|7|14|8|@]|9|@]|C|$G|H]]|$1|M|3|N|5|6|7|15|8|@]|9|@$A|16|B|17|1|18]]|C|$]]|$1|O|3|-4|5|6|7|19|8|@]|9|@]|C|$]]]|P|$Q|$5|R|S|T|C|$U|V]]|W|$5|R|S|T|C|$U|X]]]]

You can use <a href="http://php.net/manual/en/function.str-replace.php" rel="noreferrer">str_replace()</a>, which is defined as:

<pre><code>str_replace($search, $replace, $subject)
</code></pre>

So you could write the code as:

<pre><code>$subject = 'REGISTER 11223344 here' ;
$search = '11223344' ;
$trimmed = str_replace($search, '', $subject) ;
echo $trimmed ;
</code></pre>

If you need better matching via regular expressions you can use <a href="http://us2.php.net/manual/en/function.preg-replace.php" rel="noreferrer">preg_replace()</a>.

blocks|key|1339795|text|假设11223344不是常量：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1339796|$string="REGISTER+11223344+here";
$s+=+explode("+",+$string);
unset($s[1]);
$s+=+implode("+",+$s);
print+"$s\n";|code-block|syntax|javascript|1339797|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|$]]

Assuming 11223344 is not constant:
<pre><code>$string=&quot;REGISTER 11223344 here&quot;;
$s = explode(&quot; &quot;, $string);
unset($s[1]);
$s = implode(&quot; &quot;, $s);
print &quot;$s\n&quot;;
</code></pre>

blocks|key|1339977|text|当您需要基于规则的匹配时，您需要使用正则表达式：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1339978|$string+=+"REGISTER+11223344+here";
preg_match("/(\d%2B)/",+$string,+$match);
$number+=+$match[1];|code-block|syntax|javascript|1339979|这将与第一组数字匹配，因此如果您需要更具体，请尝试：|1339980|$string+=+"REGISTER+11223344+here";
preg_match("/REGISTER+(\d%2B)+here/",+$string,+$match);
$number+=+$match[1];|1339981|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

When you need rule-based matching, you need to use a regular expression:
<pre><code>$string = &quot;REGISTER 11223344 here&quot;;
preg_match(&quot;/(\d+)/&quot;, $string, $match);
$number = $match[1];
</code></pre>
That will match the first set of numbers, so if you need to be more specific, try:
<pre><code>$string = &quot;REGISTER 11223344 here&quot;;
preg_match(&quot;/REGISTER (\d+) here/&quot;, $string, $match);
$number = $match[1];
</code></pre>

blocks|key|1340060|text|动态地，如果要从字符串的(a)固定索引中删除(a)部分，请使用以下函数：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1340061|/**
+*+Removes+index/indexes+from+a+string,+using+a+delimiter.
+*+
+*+@param+string+$string
+*+@param+int%7Cint[]+$index+An+index,+or+a+list+of+indexes+to+be+removed+from+string.
+*+@param+string+$delimiter+
+*+@return+string
+*+@todo+Note:+For+PHP+versions+lower+than+7.0,+remove+scalar+type+hints+(i.e.+the
+*+types+before+each+argument)+and+the+return+type.
+*/
function+removeFromString(string+$string,+$index,+string+$delimiter+=+"+"):+string
{
++++$stringParts+=+explode($delimiter,+$string);

++++//+Remove+indexes+from+string+parts
++++if+(is_array($index))+{
++++++++foreach+($index+as+$i)+{
++++++++++++unset($stringParts[(int)($i)]);
++++++++}
++++}+else+{
++++++++unset($stringParts[(int)($index)]);
++++}

++++//+Join+all+parts+together+and+return+it
++++return+implode($delimiter,+$stringParts);
}|code-block|syntax|javascript|1340062|出于您的目的：|1340063|remove_from_str("REGISTER+11223344+here",+1);+//+Output:+REGISTER+here|1340064|它的一个用法是执行类似命令的字符串，您知道它的结构。|1340065|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|$]]

Dynamically, if you want to remove (a) part(s) from (a) fixed index(es) of a string, use this function:

<pre><code>/**
 * Removes index/indexes from a string, using a delimiter.
 * 
 * @param string $string
 * @param int|int[] $index An index, or a list of indexes to be removed from string.
 * @param string $delimiter 
 * @return string
 * @todo Note: For PHP versions lower than 7.0, remove scalar type hints (i.e. the
 * types before each argument) and the return type.
 */
function removeFromString(string $string, $index, string $delimiter = " "): string
{
 $stringParts = explode($delimiter, $string);

 // Remove indexes from string parts
 if (is_array($index)) {
 foreach ($index as $i) {
 unset($stringParts[(int)($i)]);
 }
 } else {
 unset($stringParts[(int)($index)]);
 }

 // Join all parts together and return it
 return implode($delimiter, $stringParts);
}
</code></pre>

For your purpose:

<pre><code>remove_from_str("REGISTER 11223344 here", 1); // Output: REGISTER here
</code></pre>

One of its usages is to execute command-like strings, which you know their structures.

blocks|key|1340150|text|下面的代码片段将打印"REGISTER+here“|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1340151|$string+=+"REGISTER+11223344+here";

$result+=+preg_replace(
+++array('/(\d%2B)/'),
+++array(''),
+++$string
);

print_r($result);|code-block|syntax|javascript|1340152|preg_replace()接口用法如下所示。|1340153|$result+=+preg_replace(
++++array('/pattern1/',+'/pattern2/'),
++++array('replace1',+'replace2'),
++++$input_string
);|1340154|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

The following snippet will print &quot;REGISTER here&quot;
<pre><code>$string = &quot;REGISTER 11223344 here&quot;;

$result = preg_replace(
 array('/(\d+)/'),
 array(''),
 $string
);

print_r($result);
</code></pre>
The preg_replace() API usage is as given below.
<pre><code>$result = preg_replace(
 array('/pattern1/', '/pattern2/'),
 array('replace1', 'replace2'),
 $input_string
);
</code></pre>

blocks|key|1124824|text|执行以下操作|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1124825|$string+=+'REGISTER+11223344+here';

$content+=+preg_replace('/REGISTER(.*)here/','',$string);|code-block|syntax|javascript|1124826|这将返回"REGISTERhere“|1124827|或|1124828|$string+=+'REGISTER+11223344+here';

$content+=+preg_replace('/REGISTER+(.*)+here/','',$string);|1124829|这将返回"REGISTER+here“|1124830|entityMap^0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|S|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|T|8|@]|9|@]|A|$]]|$1|K|3|L|5|D|7|U|8|@]|9|@]|A|$E|F]]|$1|M|3|N|5|6|7|V|8|@]|9|@]|A|$]]|$1|O|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|P|$]]

Do the following

<pre><code>$string = 'REGISTER 11223344 here';

$content = preg_replace('/REGISTER(.*)here/','',$string);
</code></pre>

This would return "REGISTERhere"

or

<pre><code>$string = 'REGISTER 11223344 here';

$content = preg_replace('/REGISTER (.*) here/','',$string);
</code></pre>

This would return "REGISTER here"

How can I remove part of a string?
Example string: <code>&quot;REGISTER 11223344 here&quot;</code>
How can I remove <code>&quot;11223344&quot;</code> from the above example string?

How can I remove part of a string in PHP?

如何删除字符串的一部分？示例字符串："REGISTER 11223344 here"如何从上面的示例字符串中删除"11223344"？

问如何在PHP中删除字符串的一部分？
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回答 7

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问如何在PHP中删除字符串的一部分？EN

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问如何在PHP中删除字符串的一部分？
EN