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Description
Description
According to thedocumentation foropcache.jit, the valuedisable means "Completely disabled, cannot be enabled at runtime", and the valueoff means "Disabled, but can be enabled at runtime".
But if you put the following values in yourphp.ini:
zend_extension=opcacheopcache.jit=offopcache.jit_buffer_size=64M...then you try to enable at runtime inside a.php file:
<?phpini_set('opcache.jit','tracing');
...then you will get this:
Warning: Cannot change opcache.jit setting at run-time (JIT is disabled)This is the same result you get if you setopcache.jit=disable.
As far as I can tell, the problem is that the code is looking for the literal stringoff but since that value is handled specially by PHP's ini parser, the code will never actually see a value ofoff. (It will never seeno orfalse either.)
php-src/ext/opcache/jit/zend_jit.c
Lines 4806 to 4817 in8830fbd
| if (ZSTR_LEN(jit)==0 | |
| ||zend_string_equals_literal_ci(jit,"disable")) { | |
| JIT_G(enabled)=0; | |
| JIT_G(on)=0; | |
| returnSUCCESS; | |
| }elseif (zend_string_equals_literal_ci(jit,"0") | |
| ||zend_string_equals_literal_ci(jit,"off") | |
| ||zend_string_equals_literal_ci(jit,"no") | |
| ||zend_string_equals_literal_ci(jit,"false")) { | |
| JIT_G(enabled)=1; | |
| JIT_G(on)=0; | |
| returnSUCCESS; |
PHP Version
PHP 8.3.7
Operating System
No response