The PHP Settings screen allows you to make changes and adjustments to the support of the programming language PHP. PHP is a programming language used to make dynamic web pages. In order to define the settings and extensions, you first need to select the version of PHP you wish to use.
PHP version
We support different versions of PHP. We recommend that you use the latest PHP version, unless you already have scripts that are made in a previous PHP version.
Once you have selected the PHP version from the corresponding drop-down list, the Runtime Configuration settings and the available PHP extensions will change accordingly.
Runtime Configuration
The Runtime Configuration settings enable you to adjust some of the most important functions that are defined in the php.ini file. Therefore, we strongly recommend that you familiarise yourself with the consequences of changing the functions before making any changes. More information about the functions and how they work can be found here (external link).
Please note that any changes done to the Runtime Configuration will directly influence the php.ini file. This php.ini file will immediately be reloaded, meaning that the changes will take effect upon saving the changes.
On/Off settings
On the left hand side of the screen, you will find several functions that can be switched on or off. These functions mostly concern the way you enter the code, like allow_url_fopen, magic_quotes_gpc, register_long_arrays and short_open_tag. The others concern security functions, like display_errors and register_globals.
Value settings
On the right hand side of the screen you can enter values for several functions. The functions max_execution_time, max_input_time and mysql.connect_timeout all define the time allowed before the function will be terminated or given a time-out. The function datetimezone defines the default timezone which will be used by all date/time functions. The email_from_address is a required field, which defines the e-mail address used when sending an e-mail from your website. Lastly, the functions memory_limit, post_max_size and upload_max_filesize all define the maximum memory or size of a post or uploaded file. Please note that the memory_limit generally should be higher than the upload_max_filesize.
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