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PHP中数组是较为常用的数据类型，如何对数组中的数据进行排序，以方便对数据进行管理，本文就带大家一起来看一看如何利用PHP内置函数对数组进行排序。 1.依据数组键值对数组排序
<?php
$arr1 = array(3,1,5,2,0);
sort($arr1);
print_r($arr1);
echo "<br>";
$arr2 = array(3,1,5,2,0);
rsort($arr2);
print_r($arr2);
?> 输出：Array ( [0] => 0 [1] => 1 [2] => 2 [3] => 3 [4] => 5 )
Array ( [0] => 5 [1] => 3 [2] => 2 [3] => 1 [4] => 0 ) sort() - 对数组进行升序排列； rsort() - 对数组进行降序排列 2.依据关联数组键值对数组排序 <?php
$fruits1 = array("d" => "lemon", "a" => "orange", "b" => "banana", "c" => "apple");
arsort($fruits1);
foreach ($fruits1 as $key => $val) {
echo "$key = $val;";
}
echo "<br>";
$fruits2 = array("d" => "lemon", "a" => "orange", "b" => "banana", "c" => "apple");
asort($fruits2);
foreach ($fruits2 as $key => $val) {
echo "$key = $val\n";
}
?>输出：a = orange;d = lemon;b = banana;c = apple;
c = apple b = banana d = lemon a = orange arsort() - 根据关联数组的值，对数组进行降序排列；asort() - 根据关联数组的值，对数组进行升序排列 3. 根据关联数组的键对数组排序 <?php
$fruits1 = array("d"=>"lemon", "a"=>"orange", "b"=>"banana", "c"=>"apple");
krsort($fruits1);
foreach ($fruits1 as $key => $val) {
echo "$key = $val\n";
}
echo "<br>";
$fruits2 = array("d"=>"lemon", "a"=>"orange", "b"=>"banana", "c"=>"apple");
ksort($fruits2);
foreach ($fruits2 as $key => $val) {
echo "$key = $val\n";
}
?>输出：d = lemon c = apple b = banana a = orange
a = orange b = banana c = apple d = lemon krsort() - 根据关联数组的键，对数组进行降序排列；ksort() - 根据关联数组的键，对数组进行升序排列 推荐：《2021年PHP面试题大汇总（收藏）》《php视频教程》 以上就是掌握PHP中对数组进行排序的正确姿势的详细内容，更多请关注模板之家(www.mb5.com.cn)其它相关文章！ |
