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Sets the value of a configuration option
(PHP 4, PHP 5)
Related Examples ( Source code ) » ini_set Examples ( Source code ) » max_execution_time Examples ( Source code ) » Port scan Examples ( Source code ) » Query the Google API using SOAP and PHP. Code Examples / Notes » ini_settr909
[[[Editors note: Yes, this is very true. Same with register_globals, magic_quotes_gpc and others. ]]] Many settings, although they do get set, have no influence in your script.... like upload_max_filesize will get set but uploaded files are already passed to your PHP script before the settings are changed. Also other settings, set by ini_set(), may be to late because of this (post_max_size etc.). beware, try settings thru php.ini or .htaccess. johnzoet
[[[Editors note: Just because you're able to set something doesn't mean it will work as expected. Depends on the setting. For example. setting register_globals at runtime will be of little use as its job has already been completed by the time it reaches your script. ]]] When a setting can not be changed in a user script, the return value of ini_set is "empty", not "false" as you may expect. If you check in your script for return value is "false" the script will continue processing, although the setting has not been set. The boolean return value is used for settings that can be changed in a script. Otherwise the empty value is returned. To test for both error conditions use: if (empty($blnResult) or (!$blnResult)) { echo "setting cannot be set"; exit; } david jackson
You can also find the Apache config files by useing command httpd -V
sean
While this doesn't belong in the manual, it should be useful for people looking on this page for zend_optimizer.* ini options, which are commonly installed: Information on the "zend_optimizer.optimization_level" and "zend_optimizer.enable_loader" options is available at: http://www.zend.com/support/user_docs/ZendOptimizer/PDF/ZendOptimizer_UserGuide.pdf vincent
Where you want set ini in .htaccess or vhosts directives, if the value of directive is boolean , use php_flag, else if the value is a string use php_value. Ex : php_value include_path /home/user/include php_flag zlib.output_compression On ron ludwig
When your ISP does not allow you to add the default include directories - it might be useful to extend the 'include_path' variable: <? ini_set('include_path',ini_get('include_path').':../includes:'); ?> brainiac5 dot php
To find the apache php settings try something like this. > cd /etc/apache2 > grep -r -n -i safe_mode_exec_dir *.conf or > grep -r -n -i safe_mode.*On *.conf If you find a gererated file, obviously you need to find the source template for it, to change what's needed there. I just wasted a sunny Sunday on searching for where the heck safe_mode_exec_dir was changed. And yes, Local Value in phpinfo does mean 'changed between the php.ini file and here', as you would think. If you have an automated virtual host configuration, such as confixx, php ini values can be spread across very many files. They can be changed in apache config files, that can have any name, but usually will end on .conf, besides in .htaccess files. klw
To change settings from .htaccess files, it is also required that the directory permissions configured in Apache allow this. The <Directory /foo/bar> entry in httpd.conf MUST contain "AllowOverride All" or at least "AllowOverride Options" to read PHP settings from the .htaccess file. E.g. in Fedora Core 2, the default settings for /var/www/html/ are "AllowOverride None", so changing PHP settings via .htaccess for applications installed below /var/www/html/ will not work. rebootconcepts.com
set PHP_INI_PERDIR settings in a .htaccess file with 'php_flag' like this: php_flag register_globals off php_flag magic_quotes_gpc on davey
If you set something using php_admin_value in httpd.conf it is then not possible to be set the value at runtime, even if it's NOT PHP_INI_SYSTEM. Just an interesting note for Server admins this might come in handy to disable setting of certain things... like allow_url_fopen. - Davey miroslav
If it´s not your server and therefore you want to hide the data in your session variables from other users, it´s very useful to set the session.save_handler in your scripts to shared memory with: "ini_set('session.save_handler','mm')". Remember: You have to set it in every script that uses the session variables BEFORE "session_start()" or php won´t find them. joel
I was having some trouble using include_path in my .htaccess file because I was running PHP and Apache on a windows platform. The difference is you have to separate paths using the semicolon(;) not the colon (:) Example: php_value include_path ".;C:\www\scripts;C:\php\;C:\php\PEAR" daevid
Be careful with setting an output_handler, as you can't use ini_set() to change it. *sigh* In my php.ini I have this for my web pages (and I want it): output_handler = ob_gzhandler But this causes my command line scripts to not show output until the very end. #!/usr/bin/php -q <?php ini_set('output_handler', 'mb_output_handler'); echo "\noutput_handler => " . ini_get('output_handler') . "\n"; ?> root@# ./myscript.php output_handler => ob_gzhandler Apparently (acording to Richard Lynch): > TOO LATE! > The ob_start() has already kicked in by this point. > ob_flush() until there are no more buffers. |
Change Language
assert_options assert dl extension_loaded get_cfg_var get_current_user get_defined_constants get_extension_funcs get_include_path get_included_files get_loaded_extensions get_magic_quotes_gpc get_magic_quotes_runtime get_required_files getenv getlastmod getmygid getmyinode getmypid getmyuid getopt getrusage ini_alter ini_get_all ini_get ini_restore ini_set main memory_get_peak_usage memory_get_usage php_ini_scanned_files php_logo_guid php_sapi_name php_uname phpcredits phpinfo phpversion putenv restore_include_path set_include_path set_magic_quotes_runtime set_time_limit sys_get_temp_dir version_compare zend_logo_guid zend_thread_id zend_version |
