警告：join（）：无效的参数刚启动

Question

我有一个定制的在线订购系统大约3年，现在突然间我收到了这个错误：

Warning: join(): Invalid arguments passed in 

php行错误已开启：

$grind51 = join(", ", $_REQUEST["grind51"]);
$grind56 = join(", ", $_REQUEST["grind56"]);
$grind60 = join(", ", $_REQUEST["grind60"]);
$grind64 = join(", ", $_REQUEST["grind64"]);
$woods = join(", ", $_REQUEST["woods"]);
$hybrids = join(", ", $_REQUEST["hybrids"]);
$hybridsOffset = join(", ", $_REQUEST["hybridsOffset"]);
$iron = join(", ", $_REQUEST["iron"]);
$wedges = join(", ", $_REQUEST["wedges"]);

不知道发生了什么，因为它长时间正常工作并且没有任何改变。 php更新会导致这个吗？

Answer 1

$ _REQUEST之一不是数组。您需要确切地确定哪条线路有问题需要纠正。