本文实例讲述了PHP简单实现冒泡排序的方法。分享给大家供大家参考,具体如下:
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<?php $files = array ( "file11.txt" , "file22.txt" , "file1.txt" , "file2.txt" ); function mySort( $arr , $nat =false) { for ( $i =0; $i < count ( $arr ); $i ++) { for ( $j =0; $j < count ( $arr )- $i -1; $j ++) { if ( $nat ) { //按照strnatcmp()自然排序函数 if ( strnatcmp ( $arr [ $j ], $arr [ $j +1])>0) { $tmp = $arr [ $j ]; $arr [ $j ] = $arr [ $j +1]; //从小到大排 $arr [ $j +1] = $tmp ; } } else { //按照strcmp()自然排序函数 if ( strcmp ( $arr [ $j ], $arr [ $j +1])>0) { $tmp = $arr [ $j ]; $arr [ $j ] = $arr [ $j +1]; //从小到大排 $arr [ $j +1] = $tmp ; } } } } return $arr ; } //Array ( [0] => file1.txt [1] => file11.txt [2] => file2.txt [3] => file22.txt ) print_r(mySort( $files ,false)); echo "<br/>" ; //2<11 //Array ( [0] => file1.txt [1] => file2.txt [2] => file11.txt [3] => file22.txt ) print_r(mySort( $files ,true)); ?> |
希望本文所述对大家PHP程序设计有所帮助。