get string piece, before last needle - php

Question

Given
$str = "asd/fgh/jkl/123
If we want to get string piece after last slash , we can use function strrchr() right?
In php not function, to get string piece, before last slah, that is asd/fgh/jkl ?
I know this can make via regex or other way, I am asking about internal function?

Answer 1

You can use
$str = "asd/fgh/jkl/123";
echo substr($str, 0,strrpos($str, '/'));
Output
asd/fgh/jkl

Answer 2

$str = "asd/fgh/jkl/123";
$lastPiece = end(explode("/", $str));
echo $lastPiece;
output: 123;
explode() converts the string into an array using "/" as a separator (you can pick the separator)
end() returns the last item of the array

Answer 3

You can do this by:
explode — Split a string by string (Documentation)
$pieces = explode("/", $str );
example
$str = "asd/fgh/jkl/123";
$pieces = explode("/", $str );
print_r($pieces);
$count= count($pieces);
echo $pieces[$count-1]; //or
echo end($pieces);
Codepad

Answer 4

Use this powerful custom function
/* $position = false and $sub = false show result of before first occurance of $needle */
/* $position = true and $sub false show result of before last occurance of $needle */
/* $position = false and $sub = true show result of after first occurance of $needle */
/* $position = true and $sub true show result of after last occurance of $needle */
function CustomStrStr($str,$needle,$position = false,$sub = false)
{
$Isneedle = strpos($str,$needle);
if ($Isneedle === false)
return false;
$needlePos =0;
$return;
if ( $position === false )
$needlePos = strpos($str,$needle);
else
$needlePos = strrpos($str,$needle);
if ($sub === false)
$return = substr($str,0,$needlePos);
else
$return = substr($str,$needlePos+strlen($needle));
return $return;
}