Note that the first replacement is applied to the whole string before the next replacement is applied.
For example:
<?php
$subject = 'a b a b a b';
preg_replace_callback_array(
[
'/a/' => function ($match) {
echo '"a" found', PHP_EOL;
},
'/b/' => function ($match) {
echo '"b" found', PHP_EOL;
}
],
$subject
);
?>
will print
"a" found
"a" found
"a" found
"b" found
"b" found
"b" found
This means that you cannot use global variables to communicate information between the functions about what point in the string you have reached.
