如果条件为true，则对上移的PHP数组进行排序

我有这样一个数组：

[
  [id: 1, urgent: true, marketplace: false],
  [id: 2, urgent: true, marketplace: true],
  [id: 3, urgent: false, marketplace: false]
]

数组的顺序是（默认）的，顶部有

emergency

。我需要的是向上移动所有具有

marketplace=true

的行

我尝试过这个，但不起作用：

usort($f, function($a, $b) {
  if ($a['marketplace'] || $b['marketplace']) {
    return 1;
  }
  return 0;
});

试试这个：

usort($f, function($a, $b) {
  if ($a['marketplace'] == $b['marketplace']) {
    return 0;
  }
  return $a['marketplace'] ? 1 : -1;
});

---

marketplace为true的字段位于新数组的顶部。

尝试结合您的条件：

---

您的意思是说

市场

的排序优先级高于

紧急

，但如果两个项目具有相同的

市场

值，

紧急=真

应位于

紧急=假

之前？

<?php
$data=[
    ['id'=> 1, 'urgent'=> true, 'marketplace'=> false],
    ['id'=> 2, 'urgent'=> true, 'marketplace'=> true],
    ['id'=> 3, 'urgent'=> false, 'marketplace'=> false],
    ['id'=> 3, 'urgent'=> false, 'marketplace'=> true],
    ['id'=> 3, 'urgent'=> false, 'marketplace'=> false],
    ['id'=> 3, 'urgent'=> false, 'marketplace'=> true],
    ['id'=> 3, 'urgent'=> false, 'marketplace'=> false],
];

echo"<pre>";
//print_r($data);


$trueArray=array();
$falseArray=array();
$i=0;
foreach($data as $row){
    if($row['marketplace']==true){
        $trueArray[$i]=$row;
    }
    else{
        $falseArray[$i]=$row;
    }
    $i++;
}

//print_r($trueArray);
//print_r($falseArray);

$result=array_merge($trueArray,$falseArray);
print_r($result);

    Array
(
    [0] => Array
        (
            [id] => 2
            [urgent] => 1
            [marketplace] => 1
        )

    [1] => Array
        (
            [id] => 3
            [urgent] => 
            [marketplace] => 1
        )

    [2] => Array
        (
            [id] => 3
            [urgent] => 
            [marketplace] => 1
        )

    [3] => Array
        (
            [id] => 1
            [urgent] => 1
            [marketplace] => 
        )

    [4] => Array
        (
            [id] => 3
            [urgent] => 
            [marketplace] => 
        )

    [5] => Array
        (
            [id] => 3
            [urgent] => 
            [marketplace] => 
        )

    [6] => Array
        (
            [id] => 3
            [urgent] => 
            [marketplace] => 
        )

)

usort( $arr, function ( $a, $b ) {
    return ($a['urgent'] || $b['urgent']) && ($a['marketplace'] || $b['marketplace']);
} );