note 109139 modified in function.explode by danbrown

<?php
function blowup($delimiter,$string){
		if(strpos($string,$delimiter)===false){
			return array($string);
		}
		else{
			return explode($delimiter, $string);
		}
	}
?>

returns you an array always. if it doesn't find the delimiter it simply returns the string but as an array.

example:

<?php echo blowup('@','cat@dog@mouse'); ?>

returns:

Array('cat','dog','mouse');

example:

<?php echo blowup('@','cat'); ?>
returns:
Array('hello');

Useful if you have to have at least ONE option

[EDIT BY danbrown AT php DOT net: DISCLAIMER - As you may have determined by now, the author meant that the second example will return Array('cat'). The function does not teach felines how to greet the user in the English language.] --was-- function blowup($delimiter,$string){ if(strpos($string,$delimiter)===false){ return array($string); } else{ return explode($delimiter, $string); } } returns you an array always. if it doesn't find the delimiter it simply returns the string but as an array. example: echo blowup('@','cat@dog@mouse'); returns: Array('cat','dog','mouse'); example: echo blowup('@','cat'); returns: Array('hello'); Useful if you have to have at least ONE option http://php.net/manual/en/function.explode.php