preg_replace (PHP function)

Question

How do I use the values "returned" by preg_replace like in the following?

preg_replace($pattern, function('$1','$2'), $contents);

So it will pass the matches instead of $1 and $2 as strings ('$1' and '$2');

Felix Kling · Accepted Answer · 2011-04-25 08:51:23Z

2

If function('$1','$2') really is a function call, then you cannot do it like that. It would be called before preg_replace is executed. In this case, you can use preg_replace_callback:

function foo($matches) {
    // $matches[1] is $1
    // $matches[2] is $2
}

preg_replace_callback($pattern, 'foo', $contents);

If it is not a function call, you have to explain better what you want to do.

answered Apr 25, 2011 at 8:51

Felix Kling

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Emil Vikström · Accepted Answer · 2011-04-25 08:52:05Z

1

$pattern = '/blabla/e'; //make sure to use the 'e' modifier
$result = preg_replace($pattern, "function('\\1', '\\2')", $contents);

answered Apr 25, 2011 at 8:52

Emil Vikström

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1 Comment

Halcyon Over a year ago

A side note: do not use the e-modifier unless you absolutely have to.

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