PHP 7.1.0 Release Candidate 4 Released

Configurazione di Runtime

Il comportamento di queste funzioni รจ influenzato dalle impostazioni di php.ini.

PCRE Configuration Options
Nome Default Modificabile Storico dei cambiamenti
pcre.backtrack_limit "1000000" PHP_INI_ALL Available since PHP 5.2.0.
pcre.recursion_limit "100000" PHP_INI_ALL Available since PHP 5.2.0.
pcre.jit "1" PHP_INI_ALL Available since PHP 7.0.0.
Per maggiori dettagli e definizioni sui modi PHP_INI_*, vedere Where a configuration setting may be set.

Breve descrizione dei parametri di configurazione.

pcre.backtrack_limit integer

PCRE's backtracking limit. Defaults to 100000 for PHP < 5.3.7.

pcre.recursion_limit integer

PCRE's recursion limit. Please note that if you set this value to a high number you may consume all the available process stack and eventually crash PHP (due to reaching the stack size limit imposed by the Operating System).

pcre.jit boolean

Whether PCRE's just-in-time compilation is going to be used.

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User Contributed Notes 1 note

chris at ocproducts dot com
6 years ago
pcre.backtrack_limit sets the maximum bind length PREG calls (e.g. preg_replace_callback) can make. However the actual maximum seems to be approximately half the value set here, possibly due to the character encoding that PCRE runs with internally.
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