Combining two php codes - php

Question

So right now I have 2 php codes that work exactly as they are supposed to
the first one pulls all info from the "src" of an "img" tag
<?php
$url="foo";
$html = file_get_contents($url);
$doc = new DOMDocument();
#$doc->loadHTML($html);
$tags = $doc->getElementsByTagName('img');
foreach ($tags as $tag) {
echo $tag->getAttribute('src') . "<br>";
}
?>
the second one is designed to pull a string of characters from between two others strings
<?php
function get_string_between($string, $start, $end){
$string = " ".$string;
$ini = strpos($string,$start);
if ($ini == 0) return "";
$ini += strlen($start);
$len = strpos($string,$end,$ini) - $ini;
return substr($string,$ini,$len);
}
$fullstring = "this is my [tag]dog[/tag]";
$parsed = get_string_between($fullstring, "[tag]", "[/tag]");
echo $parsed; // (result = dog)
?>
what I need is to figure out how to use the second code to only pull a piece of the "src" and replace it for as long as there are still "img" tags to process
so if the tag comes back "/pics/foo.jpg" i can remove the "/pics/" and the ".jpg" leaving me with just "foo"
i hope i have made some sense. thanks

Answer 1

Why do you want to use the second code? You can do it with exploding the fullstring:
$exploded_tag = explode($tag,'\');
Then you need the last element of the string (foo.jpg):
$last_part = end($exploded_tag);
Then you have to explode it and take the first element (foo):
$exploded_lastpart = explode($last_part,'.');
$piece = $exploded_lastpart[0];

Answer 2

You don't need second code. There is function in PHP called pathinfo(). So you can just do:
$path_parts = pathinfo('/pics/foo.jpg');
echo $path_parts['filename'];