Question

我在$ _POST中有一个数组：

Array ( [tags] => 1,2,3,4,5)

如何将此数组转换为数组，如下所示：

Array ( [tag1] => 1 [tag2] => 2 [tag3] => 3 [tag4] => 4 [tag5] => 5)

Answer 1

$ tags = explode（＆＃34;，＆＃34;，$ _POST [＆＃39; tags＆＃39;]）; 的print_r（$标签）;

$sqlUserLevel = $user_home->runQuery("SELECT * FROM po_users");
$sqlUserLevel->execute();
$loggedInUserRole = $sqlUserLevel->fetch(PDO::FETCH_ASSOC);

Answer 2

使用foreach和explode -

$newArr = array();
foreach (explode(', ', $_POST[tags]) as $val) {
  //modify the key with prepending the tag string
  $key = "tag{$val}";
  $newArr[$key] = $val;
}

print_r($newArr); //this will be your required array

Answer 3

<?php
$array = array( 'tags' => ['1','2','3','4','5']);

foreach( $array as $key => $value )
{
  foreach( $value as $t )
  {
     $new[ 'tag'.$t ] = $t;
  }
}
var_dump( $new );

根据需要保留数组键。

Answer 4

请使用explode函数将字符串转换为数组。

$tagsStr=$_POST['tags'];

 $tagArray=explode(",",$tagsStr);

Answer 5

尝试以下代码：假设$ _POST [＆＃39;标签＆＃39;]存在

//the $arr will have key beginning from 0 to the upper bound number
$arr=explode(",",$_POST['tags']);

//to get tags1, tags2 etc. as key try the following
$cnt=1;
$newArray=array();
foreach($arr as $a){
    $newArray['tags'.$cnt]=$a;
    $cnt++;
}
print_r($newArray);

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5 个答案: