[英]php multidimensional array sort
我有这个多维数组,我想知道如何再次对该数组排序,以便可以在for循环中使用它。
array (size=3)
0 =>
array (size=1)
0 =>
array (size=7)
'username' => string 'wajdi' (length=5)
'userimage' => string 'file_3898.jpg' (length=13)
'date' => int 1373721708
'postid' => string '118' (length=3)
'type' => string 'comment' (length=7)
'comment' => string 'a' (length=1)
'notify' => string '0' (length=1)
2 =>
array (size=1)
2 =>
array (size=7)
'username' => string 'wajdi' (length=5)
'userimage' => string 'file_3898.jpg' (length=13)
'date' => int 1373721711
'postid' => string '118' (length=3)
'type' => string 'comment' (length=7)
'comment' => string 'c' (length=1)
'notify' => string '0' (length=1)
3 =>
array (size=1)
3 =>
array (size=7)
'username' => string 'wajdi' (length=5)
'userimage' => string 'file_3898.jpg' (length=13)
'date' => int 1373721712
'postid' => string '118' (length=3)
'type' => string 'comment' (length=7)
'comment' => string 'd' (length=1)
'notify' => string '0' (length=1)
我怎样才能重新索引该数组成为
array (size=3)
0 =>
array (size=1)
0 =>
array (size=7)
'username' => string 'wajdi' (length=5)
'userimage' => string 'file_3898.jpg' (length=13)
'date' => int 1373721708
'postid' => string '118' (length=3)
'type' => string 'comment' (length=7)
'comment' => string 'a' (length=1)
'notify' => string '0' (length=1)
1 =>
array (size=1)
1 =>
array (size=7)
'username' => string 'wajdi' (length=5)
'userimage' => string 'file_3898.jpg' (length=13)
'date' => int 1373721711
'postid' => string '118' (length=3)
'type' => string 'comment' (length=7)
'comment' => string 'c' (length=1)
'notify' => string '0' (length=1)
2 =>
array (size=1)
2 =>
array (size=7)
'username' => string 'wajdi' (length=5)
'userimage' => string 'file_3898.jpg' (length=13)
'date' => int 1373721712
'postid' => string '118' (length=3)
'type' => string 'comment' (length=7)
'comment' => string 'd' (length=1)
'notify' => string '0' (length=1)
我尝试了array_shift和array_chunk但没有任何效果! 请帮助,谢谢大家:)
使用array_multisort对多维数组进行排序或使用多个键对数组进行排序。
我认为应该这样做,但是如果没有额外的阵列,它会干净很多。
$new_array = array();
$index = 0;
foreach($array as $i1 => $a1){
foreach($a1 as $i2 => $a2){
$new_array[$index][$index] = $a2;
}
$index++;
}
您可以使用'array_values'重新索引,索引从0开始。根据您的要求,内部数组不是从0开始,而是与父数组索引相同。 您必须为此使用foreach
。 要索引所需的方式,可以这样完成:
$info = array(
0 => array (
0 => array (
'username' => 'wajdi',
'userimage' => 'file_3898.jpg',
'date' => 1373721708,
'postid' => '118',
'type' => 'comment',
'comment' => 'a',
'notify' => '0'
)
),
2 => array (
2 => array (
'username' => 'wajdi',
'userimage' => 'file_3898.jpg',
'date' => 1373721708,
'postid' => '118',
'type' => 'comment',
'comment' => 'a',
'notify' => '0'
)
),
3 => array (
3 => array (
'username' => 'wajdi',
'userimage' => 'file_3898.jpg',
'date' => 1373721708,
'postid' => '118',
'type' => 'comment',
'comment' => 'a',
'notify' => '0'
)
)
);
var_dump($info); // original index
$info = array_values($info);
foreach ($info as $key => $value) {
$temp = array();
foreach($value as $k => $v) {
$temp[$key] = $v;
}
$info[$key] = $temp;
}
var_dump($info); // re-index
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