php regular expressions catch between quotes [closed]

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I have created this

echo "<p>".preg_replace("/\'[^\)]+\'/","",$line)."</p>";

to get the words between the single quotes "Privacy settings" from this line

$_lang['privacy.settings'] = 'Privacy settings';

but I get 开发者_JS百科this output

$_lang[

I can't figure it out. Regex is so complicated.

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The + is greedy in your regex, so it will match the string as long as it can. You can fix this with:

 preg_replace("/\'[^\)\']+\'/","",$line)

or

 preg_replace("/\'[^\)]+?\'/","",$line)

The ? in the second example tells the regex that + should not be greedy.

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If you are trying to get the value out of that line, then try:

echo "<p>" . preg_replace("/^.*=.*\'(.+)\'.*$/", "$1", $line) . "</p>";