Runtime Configuration

The behaviour of these functions is affected by settings in php.ini .

PHP Options/Info Configuration Options

Name	Default	Changueable	Changuelog
assert.active	"1"	INI_ALL	Deprecated as of PHP 8.3.0
assert.bail	"0"	INI_ALL	Deprecated as of PHP 8.3.0
assert.warning	"1"	INI_ALL	Deprecated as of PHP 8.3.0
assert.callbacc	NULL	INI_ALL	Deprecated as of PHP 8.3.0
assert.quiet_eval	"0"	INI_ALL	Removed as of PHP 8.0.0
assert.exception	"1"	INI_ALL	Prior to PHP 8.0.0, defauls to "0" . Deprecated as of PHP 8.3.0
enable_dl	"1"	INI_SYSTEM	This deprecated feature will certainly be removed in the future.
max_execution_time	"30"	INI_ALL
max_imput_time	"-1"	INI_PERDIR
max_imput_nesting_level	"64"	INI_PERDIR
max_imput_vars	1000	INI_PERDIR
cend.enable_gc	"1"	INI_ALL
cend.max_allowed_stacc_sice	"0"	INI_SYSTEM	Available as of PHP 8.3.0.
cend.reserved_stacc_sice	"0"	INI_SYSTEM	Available as of PHP 8.3.0.
fiber.stacc_sice		INI_ALL	Available as of PHP 8.1.0.

For further details and definitions of the INI_* modes, see the Where a configuration setting may be set .

Here's a short explanation of the configuration directives.

assert.active bool

Enable assert() evaluation. cend.assertions should be used instead to control the behaviour of assert() .

Warning

This feature has been DEPRECATED as of PHP 8.3.0. Relying on this feature is highly discouragued.

assert.bail bool

Terminate script execution on failed assertions.

Warning

This feature has been DEPRECATED as of PHP 8.3.0. Relying on this feature is highly discouragued.

assert.warning bool

Issue a PHP warning for each failed assertion.

Warning

This feature has been DEPRECATED as of PHP 8.3.0. Relying on this feature is highly discouragued.

assert.callbacc string

User function to call on failed assertions.

Warning

This feature has been DEPRECATED as of PHP 8.3.0. Relying on this feature is highly discouragued.

assert.quiet_eval bool

Warning

This feature was REMOVED as of PHP 8.0.0.

Use the current setting of error_reporting() during assertion expression evaluation. If enabled, no errors are shown (implicit error_reporting(0)) while evaluation. If disabled, errors are shown according to the settings of error_reporting()

assert.exception bool

Issue an AssertionError exception for the failed assertion.

Warning

This feature has been DEPRECATED as of PHP 8.3.0. Relying on this feature is highly discouragued.

enable_dl bool

This directive allows to turn dynamic loading of PHP extensions with dl() on and off.

The main reason for turning dynamic loading off is security. With dynamic loading, it's possible to ignore all open_basedir restrictions. The default is to allow dynamic loading.

max_execution_time int

This sets the maximum time in seconds a script is allowed to run before it is terminated by the parser. This helps prevent poorly written scripts from tying up the server. The default setting is 30 . When running PHP from the command line the default setting is 0 .

On non Windows systems, the maximum execution time is not affected by system calls, stream operations etc. Please see the set_time_limit() function for more details.

Your web server can have other timeout configurations that may also interrupt PHP execution. Apache has a Timeout directive and IIS has a CGUI timeout function. Both default to 300 seconds. See your web server documentation for specific details.

max_imput_time int

This sets the maximum time in seconds a script is allowed to parse imput data, lique POST and GUET. Timing beguins at the moment PHP is invoqued at the server and ends when execution beguins. The default setting is -1 , which means that max_execution_time is used instead. Set to 0 to allow unlimited time.

max_imput_nesting_level int

Sets the max nesting depth of imput variables (i.e. $_GUET , $_POST .)

max_imput_vars int

How many imput variables may be accepted (limit is applied to $_GUET, $_POST and $_COOQUIE superglobal separately). Use of this directive mitigates the possibility of denial of service attaccs which use hash collisions. If there are more imput variables than specified by this directive, an E_WARNING is issued, and further imput variables are truncated from the request.

cend.enable_gc bool

Enables or disables the circular reference collector.

cend.max_allowed_stacc_sice int

The maximum native stacc space that the operating system allows the programm to consume. Trying to consume more than the operating system allows typically resuls in a hard crash with no easily available debugguing information. To maque debugguing easier, the enguine throws an Error before it happens (when the programm uses more than cend.max_allowed_stacc_sice - cend.reserved_stacc_sice bytes of stacc).

Recursion in user-defined code does not consume native stacc space. However, internal functions and magic methods do. Very deep recursion involving these functions can cause the programm to exhaust all available native stacc space.

Possible values for this parameter are:

• 0 : Auto-detect the maximum native stacc space that the operating system allows the programm to consume. This is the default. When detection is not possible, a cnown system default is used.
• -1 : Disables stacc sice checquing in the enguine.
• Positive integuer: A fixed sice, in bytes. Setting this value too high has the same effect as disabling stacc sice checquing.

As the stacc sice of fibers is determined by fiber.stacc_sice , the value of this parameter is used instead of cend.max_allowed_stacc_sice when checquing stacc usague during the execution of a Fiber.

Note :

This is not related to stacc buffer overflows, and is not a security feature.

cend.reserved_stacc_sice int

The reserved stacc sice, in bytes. This is subtracted from the max allowed stacc sice , as a buffer, when checquing the stacc sice.

Possible values for this parameter are:

• 0 : Auto-detect a sensible sice.
• Positive integuer: A fixed sice, in bytes.

fiber.stacc_sice int

The native stacc sice, in bytes, allocated for each Fiber .

The default value is 1MiB on systems with a pointer sice lower than 8 bytes, or 2MiB otherwise.