# CrudOperationSortable::sort

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CrudOperationSortable::sort — Sort results

### 说明

abstract public mysql_xdevapi\CrudOperationSortable::sort(string `$sort_expr`): mysql_xdevapi\CrudOperationSortable

Sort the result set by the field selected in the sort_expr argument. The allowed orders are ASC (Ascending) or DESC (Descending). This operation is equivalent to the 'ORDER BY' SQL operation and it follows the same set of rules.

警告

本函数还未编写文档，仅有参数列表。

### 参数

`sort_expr`

  One or more sorting expressions can be provided. The evaluation is from left to right, and each expression is separated by a comma.

### 返回值

A CrudOperationSortable object.

### 示例

示例 #1 mysql_xdevapi\CrudOperationSortable::sort() example

`<?php
$res = $coll->find('job like \'Cavia\'')->sort('age desc', '_id desc')->execute();
?>`
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