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PHP code to sort multidimensional arrays by a certain value

WBOYOriginal: 2016-07-25 09:07:38778browse

$arr = array(
"0" => array(line_num => "10", occur_time => "2007-11-19 10:25:04+08"),
　　 "1" => array(line_num => "9", occur_time => "2007-11-19 10:25:04+08"),
　"2" => array(line_num => "25", occur_time => "2007-11-19 10:25:04+08")
);
print_r($arr);
echo "
";
echo "
";
echo "
";
uasort( $arr,create_function('$a, $b', 'return $a['line_num'] < $b['line_num'];') );
print_r($arr);
echo "
";
echo "
";
echo "
";
foreach($arr as $key => $value) {
$ar[] = $value;
}
print_r($ar);
?>

复制代码

输出结果： Array ( [0] => Array ( [line_num] => 10 [occur_time] => 2007-11-19 10:25:04+08 ) [1] => Array ( [line_num] => 9 [occur_time] => 2007-11-19 10:25:04+08 ) [2] => Array ( [line_num] => 25 [occur_time] => 2007-11-19 10:25:04+08 ) )

Array ( [2] => Array ( [line_num] => 25 [occur_time] => 2007-11-19 10:25:04+08 ) [0] => Array ( [line_num] => 10 [occur_time] => 2007-11-19 10:25:04+08 ) [1] => Array ( [line_num] => 9 [occur_time] => 2007-11-19 10:25:04+08 ) )

Array ( [0] => Array ( [line_num] => 25 [occur_time] => 2007-11-19 10:25:04+08 ) [1] => Array ( [line_num] => 10 [occur_time] => 2007-11-19 10:25:04+08 ) [2] => Array ( [line_num] => 9 [occur_time] => 2007-11-19 10:25:04+08 ) )

>>> 更多内容，请查看 php数组排序方法大全

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