PHP strtolower()

The strtolower() function in PHP converts a string to lowercase.

Syntax

strtolower($string);

The strtolower() function takes one parameter, $string, as input and returns a new string with all the characters converted to lowercase. The $string can be any string value.

Example

The following example uses the strtolower() function to convert a capitalized string to a lowercase string. Then the echo command prints this string to the console:

<?php
  echo (strtolower( "I Solemnly Swear That I Am Up To No Good"));
?>

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The example will result in the following output:

i solemnly swear that i am up to no good

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Codebyte Example

The following example uses the strtolower() function on a string:

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