함수 substrBefore()

rm_from

1 PHP

function rm_from($needle, $haystack, $preservation = true) {
	$pos = strpos($haystack, $needle);
	if($pos !== false) return substr($haystack, 0, $pos);
	if($preservation) return $haystack;
	return false;
}
$result1 = rm_from('ll', 'hello');
$result2 = rm_from('al', 'hello');
$result3 = rm_from('al', 'hello', false);
echo "[$result1]"; // [he]
echo "[$result2]"; // [hello]
echo "[$result3]"; // []

function rm_from($needle, $haystack, $preservation = true) {
	$arr = explode($needle, $haystack, 2);
	if( count($arr)<2 && !$preservation ) return false;
	return $arr[0];
}

2 같이 보기

• rm_after
• rm_before
• rm_until