php 多维数组的排序实现代码
本文章给大家整一个php 多维数组的排序实现代码,我们在实际编码中将会用到PHP函数array_multisort()来实现这一复杂的排序,有需要了解的朋友可参考.
如数组,代码如下:
Array ( [0] => Array ( [id] => 1146 [orderid] => 3 ) [1] => Array ( [id] => 1149 [orderid] => 2 ) [2] => Array ( [id] => 170 [orderid] => 4 ) [3] => Array ( [id] => 1121 [orderid] => 3 ) [4] => Array ( [id] => 1120 [orderid] => 7 ) )这么一个数据,想按orderid来排序,找不到内置的php函数,网上搜索了下,发现如下方法,代码如下:
$asc_func = create_function( '$a,$b' ,' $k = "orderid" ; if ( $a [ $k ] == $b [ $k ]) return 0; return $a [ $k ]> $b [ $k ]?1:-1; '); usort( $arrs , $asc_func );$arrs是原数组,$k="orderid"是要排序的字段,后来对上面代码进行了升级,代码如下:
function sysSortArray( $ArrayData , $KeyName1 , $SortOrder1 = "SORT_ASC" , $SortType1 = "SORT_REGULAR" ) { if (! is_array ( $ArrayData )) { return $ArrayData ; } // Get args number. $ArgCount = func_num_args(); // Get keys to sort by and put them to SortRule array. for ( $I = 1; $I < $ArgCount ; $I ++) { $Arg = func_get_arg( $I ); if (! eregi ( "SORT" , $Arg )) { $KeyNameList [] = $Arg ; $SortRule [] = '$' . $Arg ; } else { $SortRule [] = $Arg ; } } // Get the values according to the keys and put them to array. foreach ( $ArrayData AS $Key => $Info ) { foreach ( $KeyNameList AS $KeyName ) { ${ $KeyName }[ $Key ] = $Info [ $KeyName ]; } } // Create the eval string and eval it. $EvalString = 'array_multisort(' .join( "," , $SortRule ). ',$ArrayData);' ; eval ( $EvalString ); return $ArrayData ; }查看更多关于php 多维数组的排序实现代码 - php数组的详细内容...
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