Remove all non php data from string

Question

I want to be able to remove all non php data from a string / file.

Now this preg_replace line works perfectly:

preg_replace('/\?>.*\<?/', '', $src); // Remove all non php data

BUT... problem is that it works only for the first match and not for all of the string/file...

Small tweak needed here ;)

It would be nicer to use the tokenizer where possible.

Ja͢ck
– Ja͢ck

2014-12-10 11:19:06 +00:00
Commented Dec 10, 2014 at 11:19 — Ja͢ck
– Ja͢ck, Commented Dec 10, 2014 at 11:19

georg · Accepted Answer · 2014-12-10 11:11:11Z

2

It would be simpler the other way round:

preg_match_all('~<\?.+?\?>~s', $src, $m);
$php = implode('', $m[0]);

Matching non-php blocks is much trickier, because they can also occur before the first php block and after the last one: blah <? php ?> blah.

Also note that no regex solution can handle <?'s inside php strings, as in:

<? echo "hi ?>";  ?>

You have to use tokenizer to parse this correctly.

answered Dec 10, 2014 at 11:11

georg

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Steven Over a year ago

Great answer ! But still I'm missing something here ? take a look : <?php $src = '<?php echo "123";?> remove me <?php echo "456"; ?> remove me <?php echo "789";?>'; $php = preg_match_all('~<\?.+?\?>~s', $src, $m); $php = implode('', $m[0]); var_dump ($m); var_dump ($php); /* I'm expecting to get : <?php echo "123";?><?php echo "456"; ?><?php echo "789";?> */ ?>

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