php preg_match_all function parameters in php file of one function

Question

I'm trying to find functionName('MATCH_1') ;, functionName( "MATCH2"); and ... functionName ('MATCH_X') ; and extract MATCH_XXX by the following text.

The text: Some text functionName('MATCH_1'); and other text functionName( "MATCH_2") ; and many another text.

Or many more in next line functionName( 'MATCH_X'); ... more text.

I want to get MATCH_1, MATCH2 and MATCH_X

My try:

<?php
preg_match_all('#functionName\s*\(\s*(\'|")(.*)(\'|")\s*\)\s*;#im', $content,$matches);

But my RegEx does not make what I want. Can you please explain me, as the RegEx must look like. And why he works like that.

regards raiserle

Can you provide $content in a reproducible format? Without an ^ or $ the m modifier is useless. — chris85
– chris85, Commented Feb 7, 2017 at 20:34
@raiserle The m modifies how the ^ and $ interact with a line or string. php.net/manual/en/reference.pcre.pattern.modifiers.php If there are...no occurrences of ^ or $ in a pattern, setting this modifier has no effect. — chris85
– chris85, Commented Feb 7, 2017 at 21:30
@chris85:Thank you. My fault - I've read on other page, the m - modifier is for multi lines. — raiserle
– raiserle, Commented Feb 7, 2017 at 21:41

flynorc · Accepted Answer · 2017-02-07 20:38:06Z

1

try this

$content = "The text: Some text functionName('MATCH_1'); and other text functionName( \"MATCH_2\") ; and many another text. Or many more in next line functionName( 'MATCH_X'); ... more text.";

preg_match_all('#functionName\s*\(\s*(\'|")(.*?)(\'|")\s*\)\s*;#im', $content,$matches);

var_dump($matches);

and then you should have what you want in $matches[2].

what i changed is i added the ? after the .* part of the regex, making it non-greedy (matching the shortest possible string instead of the longest match). This does make it less performant. See: here for an explanation of why and more detailed explanation.

answered Feb 7, 2017 at 20:38

flynorc

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1 Comment

raiserle Over a year ago

Thank you. ? after .* works exactly. The link is perfect. MATCH_1');?>functionName('MATCH2 is now correct.

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