标题：php对多维数组按某值排序的例子
出处：BIWEB开源PHP WMS系统创始人ArthurXF肖飞的blog
时间：Mon, 21 Jul 2008 11:45:55 +0000
作者：ArthurXF
地址：http://www.bizeway.net/read.php/343.htm

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

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)
)<br /><br /><br />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)
)<br /><br /><br />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)
)



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