PHP sort() 函数
实例
对数组 $cars 中的元素按字母进行升序排序：
<?php
$cars=array("Volvo","BMW","Toyota");
sort($cars);
?>
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定义和用法
sort() 函数对索引数组进行升序排序。
注释：本函数为数组中的单元赋予新的键名。原有的键名将被删除。
Returns TRUE if successful, otherwise FALSE.
Tip:Use rsort() The function sorts the index array in descending order.
Syntax
sort(array,sortingtype);
| Parameters |
Description |
| array |
Required. Specify the array to be sorted. |
| sortingtype |
Optional. Specify how to compare array elements/items. Possible values:
- 0 = SORT_REGULAR - Default. Arrange each item in the regular order (Standard ASCII, do not change type)
- 1 = SORT_NUMERIC - Treat each item as a number.
- 2 = SORT_STRING - Treat each item as a string.
- 3 = SORT_LOCALE_STRING - Treat each item as a string, based on the current locale (can be changed by setlocale()).
- 4 = SORT_NATURAL - Treat each item as a string, using a natural sorting similar to natsort().
- 5 = SORT_FLAG_CASE - Can combine (bitwise OR) SORT_STRING or SORT_NATURAL to sort strings without case sensitivity.
|
Technical Details
| Return Value: |
Returns TRUE if successful, FALSE otherwise. |
| PHP Version: |
4+ |
More Examples
Example 1
Sort elements of the array $numbers in ascending order by number:
<?php
$numbers=array(4,6,2,22,11);
sort($numbers);
?>
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