
<?php function instabuyut($gelen){
$istenmeyen= array('/s150x150');
$degisen = array('');
$giden = str_replace($istenmeyen,$degisen,$gelen);
return $giden;
}
$link = 'https://scontent-frt3-1.cdninstagram.com/t51.2885-19/s150x150/13739633_1648409658810275_999417478_a.jpg';
echo '<img src="'.instabuyut($link).'" alt="İnstagram" height="500" width="500">';
?>Çıktı: