我正在寻找一个解决方案，把一个指定的id循环结束。
主要问题，id并不总是在DESC顺序或ASC，所以我不能使用这个条件。
$array = array(
'id' => 3,
'id' => 4,
'id' => 2,
'id' => 8
);
$specifiedId = 2; //can be 3, 4 or 8, it depends on what user define
foreach($array as $data){
if($data->id == $specifiedId){
//store this id and move to the end of loop, do nothing yet
}
//do the job for id 3 4 and 8, update some data let say...
...
//Ok, i have updated the data on id 3 4 and 8, now lets update the data for the $specifiedId
}
是否有办法把指定的id到循环结束?
是。试试这个
<?php
$array = array(3,4,2,8);
$specifiedId = 2;
$t = count($array);
foreach($array as $key => $data){
if($data == $specifiedId){
$desired_id = $key;
}
if($key == $t - 1){//last iteration of the loop
//now use your $desired_id here as reuired
$desired_id;
}
}
?>
如果在循环过程中找到数组中的项，则可以将其保存在变量中，然后在循环结束后对该变量进行操作。
$specifiedId = 2; //can be 3, 4 or 8, it depends on what user define
$specific_object = null;
foreach ($array as $data) {
if ($data->id == $speficiedId) {
//store this id and move to the end of loop, do nothing yet
$specific_object = $data;
} else {
//do the job for id 3 4 and 8, update some data let say...
do_something_with($data);
}
}
//Ok, i have updated the data on id 3 4 and 8, now lets update the data for the $speficiedId
if ($specific_object) do_something_with($specific_object);