共享一个PHP对二维数组的某个字段进行升降排序类
<?php/** * @author paul <[email protected]> * @desc 对二维数组的某一个字段进行升降排序 * @data * $testData = array( array('newPrice'=>9), array('newPrice'=>21), array('newPrice'=>15), array('newPrice'=>13), array('newPrice'=>12) ); */class sortClass{ //升序 function sortArrayAsc($preData,$sortType='newPrice'){ $sortData = array(); foreach ($preData as $key_i => $value_i){ $price_i = $value_i[$sortType]; $min_key = ''; $sort_total = count($sortData); foreach ($sortData as $key_j => $value_j){ if($price_i<$value_j[$sortType]){ $min_key = $key_j+1; break; } } if(empty($min_key)){ array_push($sortData, $value_i); }else { $sortData1 = array_slice($sortData, 0,$min_key-1); array_push($sortData1, $value_i); if(($min_key-1)<$sort_total){ $sortData2 = array_slice($sortData, $min_key-1); foreach ($sortData2 as $value){ array_push($sortData1, $value); } } $sortData = $sortData1; } } return $sortData; } //降序 function sortArrayDesc($preData,$sortType='newPrice'){ $sortData = array(); foreach ($preData as $key_i => $value_i){ $price_i = $value_i[$sortType]; $min_key = ''; $sort_total = count($sortData); foreach ($sortData as $key_j => $value_j){ if($price_i>$value_j[$sortType]){ $min_key = $key_j+1; break; } } if(empty($min_key)){ array_push($sortData, $value_i); }else { $sortData1 = array_slice($sortData, 0,$min_key-1); array_push($sortData1, $value_i); if(($min_key-1)<$sort_total){ $sortData2 = array_slice($sortData, $min_key-1); foreach ($sortData2 as $value){ array_push($sortData1, $value); } } $sortData = $sortData1; } } return $sortData; }}?>
