怎么将下面二维数组拆分成几个数组
$arr = array(
array(
'id' => 1,
'user_name'=>'test1'
),
array(
'id' => 2,
'user_name'=>'test2'
),
array(
'id' => 3,
'user_name'=>'test3'
),,
array(
'id' => 4,
'user_name'=>'test2'
),
array(
'id' => 5,
'user_name'=>'test3'
)
);
拆分后,个数不一定，每组2个或者3个不一定
$arrnew[0] = array(
array( 'id' => 1, 'user_name'=>'test1' ), array( 'id' => 2, 'user_name'=>'test2' )
);
$arrnew[1] = array(
array( 'id' => 3, 'user_name'=>'test3' ),, array( 'id' => 4, 'user_name'=>'test2' )
);
$arrnew[2] = array(
array(
'id' => 5, 'user_name'=>'test3' )
);
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回复内容：
怎么将下面二维数组拆分成几个数组
$arr = array(
array(
'id' => 1,
'user_name'=>'test1'
),
array(
'id' => 2,
'user_name'=>'test2'
),
array(
'id' => 3,
'user_name'=>'test3'
),,
array(
'id' => 4,
'user_name'=>'test2'
),
array(
'id' => 5,
'user_name'=>'test3'
)
);
拆分后,个数不一定，每组2个或者3个不一定
$arrnew[0] = array(
array( 'id' => 1, 'user_name'=>'test1' ), array( 'id' => 2, 'user_name'=>'test2' )
);
$arrnew[1] = array(
array( 'id' => 3, 'user_name'=>'test3' ),, array( 'id' => 4, 'user_name'=>'test2' )
);
$arrnew[2] = array(
array(
'id' => 5, 'user_name'=>'test3' )
);
立即学习“PHP免费学习笔记（深入）”；
array_chunk($arr,$num);//$num为2或3
试下下面逻辑是否正确
$arr = array(
array(
'id' => 1,
'user_name'=>'test1'
),
array(
'id' => 2,
'user_name'=>'test2'
),
array(
'id' => 3,
'user_name'=>'test3'
),
array(
'id' => 4,
'user_name'=>'test2'
),
array(
'id' => 5,
'user_name'=>'test3'
)
);
rsort($arr);
$newArr = [];
while(!empty($arr)) {
$count = rand(2,3);/这里控制一个数组要几个元素，此处设置2-3个
$tmpArr = [];
for($i = 0; $i< $count ; $i++) {
$tmpArr[] = array_pop($arr);
}
$newArr[] = $tmpArr;
}
dump($newArr);
