我有一个数组,$idarray .
array(3) {
[0]=>
string(4) "102"
[1]=>
string(4) "211"
[2]=>
string(4) "421"
}
调用另一个函数传递数组元素。
foreach($idarray as $id){
$r = get_rate($id);
foreach($r as $result=> $row){
}
}
另一个功能
function get_rate($qid){
foreach($qids as $qid){
execute sql here
}
当我将数组传递给函数"foreach($qids as $qid)"时发生错误,那么我不能进入 foreach 语句并执行。如何将数组传递给函数?
foreach($idarray as $id){
$r = get_rate($id);
...
传递字符串,而不是数组。如您所见 - 您的数组包含字符串,而不是数组。它不是一个多维数组。将字符串用作数组将产生错误。因此:
function get_rate($qid){
foreach($qids as $qid){
execute sql here
}
}
应该是
function get_rate($qid){
execute sql here, you already have a single id, $qid
}
foreach($idarray as $id){
$r = get_rate($id);//here $id is an array element not an array
foreach($r as $result=> $row){
}
}
另一个功能
function get_rate($qid){
//here $qid is a single element like 102,211,so on.....
//no need foreach loop here,just execute your sql and return your result
//foreach($qids as $qid){
execute sql here
//}
}