php 突出显示字符串中的单词（如果它包含关键字）
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highlight the word in the string, if it contains the keyword
提问by Simon
how write the script, which menchion the whole word, if it contain the keyword? example:keyword "fun", string - the bird is funny, result - the bird is * funny*. i do the following
如果包含关键字，如何编写脚本，整个单词哪个menchion？例如：关键字“有趣”，字符串 - 鸟很有趣，结果 - 鸟很有趣*。我做以下
$str = "my bird is funny";
$keyword = "fun";
$str = preg_replace("/($keyword)/i","<b></b>",$str);
but it menshions only keyword. my bird is funny
但它只提及关键字。我的鸟很有趣纽约
回答by Gumbo
Try this:
尝试这个：
preg_replace("/\w*?$keyword\w*/i", "<b>preg_replace("/\w*?".preg_quote($keyword)."\w*/i", "<b>preg_replace("/\p{L}*?".preg_quote($keyword)."\p{L}*/ui", "<b> $str = preg_replace("/\b([a-z]*${keyword}[a-z]*)\b/i","<b></b>",$str);
</b>", $str)
</b>", $str)
</b>", $str)
\w*?matches any word characters before the keyword (as least as possible) and \w*any word characters after the keyword.
\w*?匹配关键字之前的任何单词字符（尽可能）和\w*关键字之后的任何单词字符。
And I recommend you to use preg_quoteto escape the keyword:
我建议您使用preg_quote来转义关键字：
$str = "Its fun to be funny and unfunny";
$keyword = 'fun';
$str = preg_replace("/\b([a-z]*${keyword}[a-z]*)\b/i","<b></b>",$str);
echo "$str"; // prints 'Its <b>fun</b> to be <b>funny</b> and <b>unfunny</b>'
For Unicode support, use the uflag and \p{L}instead of \w:
对于 Unicode 支持，请使用u标志而\p{L}不是\w：
<?php
$str = "my bird is funny";
$keyword = "fun";
$look = explode(' ',$str);
foreach($look as $find){
if(strpos($find, $keyword) !== false) {
if(!isset($highlight)){
$highlight[] = $find;
} else {
if(!in_array($find,$highlight)){
$highlight[] = $find;
}
}
}
}
if(isset($highlight)){
foreach($highlight as $replace){
$str = str_replace($replace,'<b>'.$replace.'</b>',$str);
}
}
echo $str;
?>
回答by codaddict
You can do the following:
您可以执行以下操作：
$keyword = ".in#.com#dot.com#1#2#3#4#5#6#7#8#9#one#two#three#four#five#Six#seven#eight#nine#ten#dot.in#dot in#";
$keyword = implode('|',explode('#',preg_quote($keyword)));
$str = "PHP is dot .com the amazon.in 123455454546 dot in scripting language of choice.";
$str = preg_replace("/($keyword)/i","<b><?php $body_text='This is simple code for highligh the word in a given body or text'; //this is the body of your page
$searh_letter = 'this'; //this is the string you want to search for
$result_body = do_Highlight($body_text,$searh_letter); // this is the result with highlight of your search word
echo $result_body; //for displaying the result
function do_Highlight($body_text,$searh_letter){ //function for highlight the word in body of your page or paragraph or string
$length= strlen($body_text); //this is length of your body
$pos = strpos($body_text, $searh_letter); // this will find the first occurance of your search text and give the position so that you can split text and highlight it
$lword = strlen($searh_letter); // this is the length of your search string so that you can add it to $pos and start with rest of your string
$split_search = $pos+$lword;
$string0 = substr($body_text, 0, $pos);
$string1 = substr($body_text,$pos,$lword);
$string2 = substr($body_text,$split_search,$length);
$body = $string0."<font style='color:#FF0000; background-color:white;'>".$string1." </font> ".$string2;
return $body;
} ?>
</b>",$str);
echo $str;
Example:
例子：
##代码##回答by Kevin
回答by Johnson
Here by am added multi search in a string for your reference
在这里我在字符串中添加了多搜索以供您参考
##代码##回答by vishal_g
Search and highlight the word in your string, text, body and paragraph:
搜索并突出显示字符串、文本、正文和段落中的单词：
##代码##