blocks|key|2632230|text|我会这样做：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2632231|$words+=+explode('%7C',+$word);
if+($words[0]+===+$needle)+{
++++unset($words[0]);
}
$word+=+implode('%7C',+$words);|code-block|syntax|javascript|2632232|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 would do something like this:

<pre><code>$words = explode('|', $word);
if ($words[0] === $needle) {
 unset($words[0]);
}
$word = implode('|', $words);
</code></pre>

blocks|key|1075393|text|试试这个：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1075394|$index+=+strpos($word,+'%7C');
$word+=+substr($word,+0,+$index);|code-block|syntax|javascript|1075395|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|$]]

Try this :

<pre><code>$index = strpos($word, '|');
$word = substr($word, 0, $index);
</code></pre>

blocks|key|1075415|text|不幸的是，PHP默认不支持这一点。这里有一个函数可以这样做：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1075416|function+str_replace_once($needle,+$replace,+$haystack){
++++$pos+=+strpos($haystack,+$needle);
++++if+($pos+===+false)+{
++++++++return+$haystack;
++++}
++++return+substr_replace($haystack,+$replace,+$pos,+strlen($needle));
}|code-block|syntax|javascript|1075417|如果只想在字符串开头替换文本：|1075418|$str+=+preg_replace('/%5E'.preg_quote($word,+'/').'/',+'',+$str);|1075419|如果您的字符串实际上是一个%7C-separated列表，请参见@lonesomeday的答案。|offset|length|style|CODE|1075420|entityMap^0|0|0|0|0|D|1|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|U|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|V|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|W|8|@$M|X|N|Y|O|P]]|9|@]|A|$]]|$1|Q|3|-4|5|6|7|Z|8|@]|9|@]|A|$]]]|R|$]]

Unfortunately PHP doesn't support this by default. Here's a function doing it:

<pre><code>function str_replace_once($needle, $replace, $haystack){
 $pos = strpos($haystack, $needle);
 if ($pos === false) {
 return $haystack;
 }
 return substr_replace($haystack, $replace, $pos, strlen($needle));
}
</code></pre>

If you want to replace the text only at the beginning of the string:

<pre><code>$str = preg_replace('/^'.preg_quote($word, '/').'/', '', $str);
</code></pre>

If your string is actually a <code>|</code>-separated list, see @lonesomeday's answer.

blocks|key|2273027|text|PHPs+替换通过限制参数直接支持这一点。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|2273028|像这样：|2273029|#+now:+removeMe%7Cmeow%7CremoveMe%7Cwhatever

$word+=+preg_replace("/$needle/",+$haystack,+$word,+1);

#+now:+%7Cmeow%7CremoveMe%7Cwhatever|code-block|syntax|javascript|2273030|如果你的针头只出现在一开始，，某事物。就像一个简单的|style|BOLD|2273031|$word+=+preg_replace("/%5E$needle/",+$haystack,+$word);|2273032|应该就够了。|2273033|问候|2273034|rbo|2273035|entityMap|0|LINK|mutability|MUTABLE|url|http://php.net/manual/en/function.preg-replace.php^0|5|2|0|0|0|0|A|4|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|14|8|@]|9|@$A|15|B|16|1|17]]|C|$]]|$1|D|3|E|5|6|7|18|8|@]|9|@]|C|$]]|$1|F|3|G|5|H|7|19|8|@]|9|@]|C|$I|J]]|$1|K|3|L|5|6|7|1A|8|@$A|1B|B|1C|M|N]]|9|@]|C|$]]|$1|O|3|P|5|H|7|1D|8|@]|9|@]|C|$I|J]]|$1|Q|3|R|5|6|7|1E|8|@]|9|@]|C|$]]|$1|S|3|T|5|6|7|1F|8|@]|9|@]|C|$]]|$1|U|3|V|5|6|7|1G|8|@]|9|@]|C|$]]|$1|W|3|-4|5|6|7|1H|8|@]|9|@]|C|$]]]|X|$Y|$5|Z|10|11|C|$12|13]]]]

PHPs <a href="http://php.net/manual/en/function.preg-replace.php" rel="nofollow">preg_replace</a> supports this directly through the limit parameter

like:

<pre><code># now: removeMe|meow|removeMe|whatever

$word = preg_replace("/$needle/", $haystack, $word, 1);

# now: |meow|removeMe|whatever
</code></pre>

If your needle only appears at the beginning, sth. like a simple

<pre><code>$word = preg_replace("/^$needle/", $haystack, $word);
</code></pre>

should suffice.

Regards

rbo

blocks|key|2273063|text|我本来想爆炸的，但这更好，更短。不过，它将留下第一个管道符号。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2273064|echo+$string+=+strstr($string，‘AC.26’)；|2273065|如果字符串是分隔的，只需用空格替换管道即可。|2273066|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|H|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|I|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|J|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|G|$]]

I was gonna go with an explode, implode, but this is better and shorter. 
It will leave the first pipe symbol though.

 
echo $string = strstr($string , '|'); 
 

If your string is space separated, just replace the pipe with a space

blocks|key|2273076|text|爆炸函数的第三个参数限制单词将被拆分多少次。这为我提供了一个非常干净的解决方案。来自php.net|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|2273077|如果设置了限制并为正，则返回的数组将包含极限元素的最大值，最后一个元素将包含字符串的其余部分。|blockquote|2273078|$split+=+explode('%7C',+$word,+2);
$word+=+$split[1];|code-block|syntax|javascript|2273079|entityMap|0|LINK|mutability|MUTABLE|url|http://php.net/explode^0|16|7|0|0|0|0^^$0|@$1|2|3|4|5|6|7|T|8|@]|9|@$A|U|B|V|1|W]]|C|$]]|$1|D|3|E|5|F|7|X|8|@]|9|@]|C|$]]|$1|G|3|H|5|I|7|Y|8|@]|9|@]|C|$J|K]]|$1|L|3|-4|5|6|7|Z|8|@]|9|@]|C|$]]]|M|$N|$5|O|P|Q|C|$R|S]]]]

Third parameter of the explode function limits how many times the word will be split. This allowed a very clean solution for me. From <a href="http://php.net/explode" rel="nofollow">php.net</a>:

<blockquote>
 If limit is set and positive, the returned array will contain a
 maximum of limit elements with the last element containing the rest of
 string.
</blockquote>

<pre><code>$split = explode('|', $word, 2);
$word = $split[1];
</code></pre>

I'm trying to remove first word from given string. I'm done so far...

<pre><code>$word = 'removeMe|meow|whatever';

$needle = 'removeMe';
$haystack = ''; // To replace with.

$word = str_replace( $needle, $haystack, $word );
</code></pre>

It's working great, but problem is when $word is something like this...

<pre><code>$word = 'removeMe|meow|removeMe|whatever';
</code></pre>

I don't want to remove second $needle. Is it possible and how? )

Remove Only First Word From Given String

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我试着从给定的字符串中删除第一个单词。到目前为止..。$word = 'removeMe|meow|whatever';$needle = 'removeMe';$haystack = ''; // To replace with.$word = str_replace( $needle, $haystack, $wo...

问只删除给定字符串中的第一个单词
EN

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问只删除给定字符串中的第一个单词EN