匹配字符串

$handle="http://ec2.images-amazon.com/images/I/311%2Bk07cuIL._SL500_AA280_.jpg,http://ec2.images-amazon.com/images/I/418Qdk6bctL._SL500_AA280_.jpg,http://ec2.images-amazon.com/images/I/51bsLAswKVL._SL500_AA280_.jpg";preg_match_all('#src="(http://ec2\.images-amazon\.com/images/I/[a-z\d]+\._SL500_AA280_\.jpg)"#is',$handle,$m);print_r($m[1]); 

preg_match_all('#http://ec2\.images-amazon\.com/images/I/.+?\._SL500_AA280_\.jpg#is',$handle,$m); print_r($m);