MYSQL中字段shezhi的内容是
a:1:{s:4:"sale";a:3:{s:10:"enoughfree";i:1;s:11:"enoughorder";d:123;s:11:"enoughareas";s:0:"";}}
PHP中取值代码是
'by' => (!(empty($goods['detail_by'])) ? $goods['detail_by'] : $shop['shezhi'])
取得的值是shezhi字段的全部内容,请问如何修改代码,只取123这个值