How to get everything after a certain character?

Question

I've got a string and I'd like to get everything after a certain value. The string always starts off with a set of numbers and then an underscore. I'd like to get the rest of the string after the underscore. So for example if I have the following strings and what I'd like returned:

"123_String" -> "String" "233718_This_is_a_string" -> "This_is_a_string" "83_Another Example" -> "Another Example" 

How can I go about doing something like this?

Answer 1

The strpos() finds the offset of the underscore, then substr grabs everything from that index plus 1, onwards.

$data = "123_String";     $whatIWant = substr($data, strpos($data, "_") + 1);     echo $whatIWant; 

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If you also want to check if the underscore character (_) exists in your string before trying to get it, you can use the following:

if (($pos = strpos($data, "_")) !== FALSE) {      $whatIWant = substr($data, $pos+1);  } 

Answer 2

strtok is an overlooked function for this sort of thing. It is meant to be quite fast.

$s = '233718_This_is_a_string'; $firstPart = strtok( $s, '_' ); $allTheRest = strtok( '' );  

Empty string like this will force the rest of the string to be returned.

NB if there was nothing at all after the '_' you would get a FALSE value for $allTheRest which, as stated in the documentation, must be tested with ===, to distinguish from other falsy values.