Can someone please help me with converting code
$file = preg_replace('~&#([0-9]+);~e', 'chr("\\1")', $file);
to use preg_replace_callback instead of it ?
Thanks
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2 Answers
$file = preg_replace_callback('~&#([0-9]+);~', function($m) { return chr($m[1]); }, $file);
If you are on a version of php that doesn't support anonymous functions, you can do this instead:
function myfunction($m) { return chr($m[1]); }
$file = preg_replace_callback('~&#([0-9]+);~', 'myfunction', $file);
3 Comments
Jonny 5
Oh this is sure the way to go, but
preg_replace should be preg_replace_callback shouldn't it :)
CrayonViolent
@Jonny5 I'm not sure what you mean.. this is what the OP asked for: convert
preg_replace to preg_replace_callback
Casimir et Hippolyte
@CrayonViolent: he means you have made a typo, you have written
preg_replace instead of preg_replace_callback.It might be something like this:
$file = preg_replace_callback(
'~&#([0-9]+);~',
function ($matches) {
// action
},
$file
);
PS. Without e modificator.
