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# SwishSearch->execute

(no version information, might be only in CVS)

SwishSearch->execute -- Execute the search and get the results

## 说明

object SwishSearch->execute ( [string query] )

警告
本函数是实验性的。本函数的行为，包括函数名称以及其它任何关于本函数的文档可能会在没有通知的情况下随 PHP 以后的发布而改变。使用本函数风险自担。

Searches the index file(s) based on the parameters set in the search object.

## 参数

`query`

  The query string is an optional parameter, it can be also set using Swish->prepare() method. The query string is preserved between executions, so you can set it once, but execute the search multiple times.

## 返回值

Returns SwishResults object.

## 错误／异常

Throws SwishException on error.

## 范例

例 1. Basic SwishSearch->execute() example

`<?php try { $swish = new Swish("index.swish-e"); $search = $swish->prepare(); $results = $search->execute("query"); echo "First query found: ", $results->hits, " hits\n"; $results = $search->execute("new OR query"); echo "Second query found: ", $results->hits, " hits\n"; } catch (SwishException $e) { echo $e->getMessage(), "\n"; } ?>`

上例的输出类似于：

    First query found: 2 hits
    Second query found: 12 hits

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