parsing - Reading certain lines of a textfile PHP -

i have write parser txt file structure this:

exampleofsomething: 95428, anotherexample: 129, youneedthis: 491,\n

anotherexample: 30219, exampleofsomething: 4998, youneedthis: 492,

but there 1 major problem - in example - file doesn't come out in 1 order, "youneedthis" before "anotherexample" etc., structure

{variable}: {value},

is same. know i'm looking (i.e. want read value of "anotherexample"). when number want write txt file in separate lines:

129

30219

from i've gotten far write every number file in separate line, have filter them out contain ones i'm looking for. there way of filtering out without having this:

$c = 0; if (fread($file, 1) == "a" && $c == 0) $c++; if (fread($file, 1) == "n" && $c == 1) $c++; if (fread($file, 1) == "o" && $c == 2) $c++; // , here after check if correct line, take number , write rest of output.txt 

how this:

<?php  $data = file_get_contents($filename); $entries = explode(",", $data); foreach($entries $entry) {     if(strpos($entry, "anotherexample") === 0) {         //split entry label , value, print value.     } }  ?> 

you'll want little more robust explode $entries, preg_split.