php capitalise uppercase code example
Example 1: ucfirst() php
<?php
$foo = 'hello world!';
$foo = ucfirst($foo); // Hello world!
$bar = 'HELLO WORLD!';
$bar = ucfirst($bar); // HELLO WORLD!
$bar = ucfirst(strtolower($bar)); // Hello world!
?>
// string manipulation function
Example 2: php open file capital letters or not
$result = current(preg_grep("/".preg_quote($filename)."/i", glob("$path/*")));