Question

I just want to know, what are the replacements of the preg_replace function.

Is there a possibility to get this?

For Example:

$string = "test text 12345"; 

$string = mb_ereg_replace('#text|test#', '$1-test2',$string); 

I want to know, that “text”, and “test” was matched? Or is calling preg_match absoulutely necessary ?

Answer 1

You can pass by reference a count variable into preg_replace which will return the number of matches/replacements that occurred.

See http://php.net/manual/en/function.preg-replace.php

$string = "test text 12345";
$count = 0;
$string = preg_replace('text', 'test2', $string, -1, $count);
echo $count; // 1