PHP str_replace() with a limit param?

Question

str_replace replaces all occurrences of a word with a replacement.

preg_replace replaces occurrences of a pattern with a replacement and ta

Answer 1

$str = implode($replace, explode($search, $subject, $count + 1));

Quick PoC:

$str =
"To be, or not to be, that is the question:
Whether 'tis Nobler in the mind to suffer
The Slings and Arrows of outrageous Fortune,
Or to take Arms against a Sea of troubles,
And by opposing end them";

/* Replace the first 2 occurrences of 'to' with 'CAN IT' in $str. */
echo implode('CAN IT', explode('to', $str, 3));

Output (emphasis added):

To be, or not CAN IT be, that is the question:
Whether 'tis Nobler in the mind CAN IT suffer
The Slings and Arrows of outrageous Fortune,
Or to take Arms against a Sea of troubles,
And by opposing end them

Note that this method is case sensitive.