How to convert to capital string in php?

This post, we helps you convert string to capital string.

1. Code:

    <?php 
	function convertToCapitalString($str){
		$exp = explode(' ', $str);
		$output = [];
		foreach ($exp as $v) {
			$v = trim($v);
			if ($v == '') continue;
			$output[] = strtolower($v[0]) . substr($v, 1);
		}
		return ucfirst(join(' ', $output));
	}
	$str = 'soltuts.com is Providing Php Tutorials';
	echo convertToCapitalString($str);
    ?> 

2. Example:

Input:

soltuts.com is Providing Php Tutorials

Output:

Soltuts.com is providing php tutorials