Estrazione di una parte di stringa in variabile.

[badaze]

Puoi fare cosi :

<? 
$content  = "IMG[24].src = '/servizi_live/meteo/radar/4.PZ/PZE0708815053G.001.gif' " . chr(10). chr(13);
$content .= "IMG[25].src='/servizi_live/meteo/radar/4.PZ/PZE0708815053G.222.gif' " . chr(10). chr(13);
$content .= "IMG[26].src =    '/servizi_live/meteo/radar/4.PZ/PZE0708815053G.333.gif' " . chr(10). chr(13);
$search_regex = "|src\s*=\s*'([^']+)'|Umsi";

$result = preg_match_all($search_regex,$content,$match); 

print_r($match);

 ?>

Array
(
    [0] => Array
        (
            [0] => src = '/servizi_live/meteo/radar/4.PZ/PZE0708815053G.001.gif'
            [1] => src='/servizi_live/meteo/radar/4.PZ/PZE0708815053G.222.gif'
            [2] => src =    '/servizi_live/meteo/radar/4.PZ/PZE0708815053G.333.gif'
        )

    [1] => Array
        (
            [0] => /servizi_live/meteo/radar/4.PZ/PZE0708815053G.001.gif
            [1] => /servizi_live/meteo/radar/4.PZ/PZE0708815053G.222.gif
            [2] => /servizi_live/meteo/radar/4.PZ/PZE0708815053G.333.gif
        )

)