How do I make the contents of a string lower case?

If you want to remove upper case letters and capitalisation, PHP provides an extremely easy way of doing so.

This is through using the strtolower function like this:


<?php

$mystring = "I DON'T LIKE SHOUTING!";

echo strtolower($mystring);

?>

Prints: "i don't like shouting!";

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How do I make the contents of a string lower case?

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