您可以通过调用直接查询 opcache 设置opcache_get_status():
opcache_get_status()["jit"]["enabled"];
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或在以下位置执行查找php.ini:
ini_get("opcache.jit")
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这是一个整数(作为字符串返回),其中最后一位数字表示 JIT 的状态:
0 - don't JIT
1 - minimal JIT (call standard VM handlers)
2 - selective VM handler inlining
3 - optimized JIT based on static type inference of individual function
4 - optimized JIT based on static type inference and call tree
5 - optimized JIT based on static type inference and inner procedure analyses
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来源:https : //wiki.php.net/rfc/jit#phpini_defaults
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