Replace any string before "/", PHP

Question

I want to replace any string before "/", irrespective of the string length.

Thanks Jean

Answer 1

one way, assuming you want to change the string before the first "/".

$str = "anystring/the_rest/blah";
$s = explode("/",$str);
$s[0]="new string";
print_r ( implode("/",$s) );

Answer 2

echo preg_replace('/^[^\/]+/', 'baz', 'foo/bar');