PHP 8.4.0 RC4 available for testing

opcache_reset

(PHP 5 >= 5.5.0, PHP 7, PHP 8, PECL ZendOpcache >= 7.0.0)

opcache_reset重置字节码缓存的内容

说明

opcache_reset(): bool

该函数将重置整个字节码缓存。在调用 opcache_reset() 之后,所有的脚本将会重新载入并且在下次命中的时候重新解析。此函数仅重置内存中的缓存,不会重置文件缓存。

参数

此函数没有参数。

返回值

如果重置字节码缓存成功,则返回 true;如果字节码缓存被禁用或等待重启或正在重启(参阅 opcache_get_status()),则返回 false

参见

添加备注

用户贡献的备注 4 notes

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56
fbgolly at gmail dot com
7 years ago
My workaround to clear cache via CLI is create a bash script like this:

#!/bin/bash
WEBDIR=/var/www/html/
RANDOM_NAME=$(head /dev/urandom | tr -dc A-Za-z0-9 | head -c 13)
echo "<?php opcache_reset(); ?>" > ${WEBDIR}${RANDOM_NAME}.php
curl http://localhost/${RANDOM_NAME}.php
rm ${WEBDIR}${RANDOM_NAME}.php

put it in /usr/local/bin/opcache-clear and make it executable.
When I want to clear cache I simply run "opcache-clear" inside terminal.
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47
Anonymous
9 years ago
It should be mentioned that opcache_reset() does not reset cache when executed via cli.
So `php -r "var_dump(opcache_reset());"` outputs "true" but doesn't clean cache. Make file, access it via http - and cache is clean.
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18
mike
8 years ago
In some (most?) systems PHP's CLI has a separate opcode cache to the one used by the web server or PHP-FPM process, which means running opcache_reset() in the CLI won't reset the webserver/fpm opcode cache, and vice-versa.
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4
Jan
4 years ago
For longer php scripts: opcache_reset() will obtain a lock and it will reset the cache only after the script has ended, after which the lock is released.

Calling opcache_reset() multiple times or any other opcache manipulation method, like opcache_invalidate(), after calling opcache_reset() in a single script is not useful: while opcache_reset() holds the lock, other opcache methods will return false and they will have zero effect on the cache.

Although the opcache manipulation methods have no effect during this lock, opcache does recache scripts corresponding to the opcache.revalidate_freq setting, provided that opcache.validate_timestamps is switched on.

To keep the cache up to date, use opcache_invalidate() when modifying single php files. Use opcache_reset() for bigger changes and only at the end of a php script.
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