主要是判斷淘寶的滿減
$str = "滿4元減1元";
$po1= (strpos($str,"滿"));
$po2= (strpos($str,"元減"));
echo '取值:'.substr($str,$po1+3,$po2-3);
取值:4
主要是判斷淘寶的滿減
$str = "滿4元減1元";
$po1= (strpos($str,"滿"));
$po2= (strpos($str,"元減"));
echo '取值:'.substr($str,$po1+3,$po2-3);
取值:4