How to solve the problem of invalid php ini_set function_PHP tutorial

Use ini_set to quickly modify the php.ini configuration settings. You don’t need to open php.ini. Especially when you are on a virtual host and you do not have permission to modify php.ini, you will find the role of this function. About ini_set , post_max_size, upload_max_filesize, magic_quotes_gpc and other solutions that cannot be set with ini_set!

post_max_size, upload_max_filesize cannot be modified using the following method.

The code is as follows

代码如下	复制代码
ini_set(‘max_execution_time’,’10′); ini_set(‘memory_limit’,’1024M’); echo ‘max_execution_time = ‘ . ini_get(‘max_execution_time’) . ” “; echo ‘memory_limit = ‘ . ini_get(‘memory_limit’) . ” “; echo ‘post_max_size = ‘ . ini_get(‘post_max_size’) . ” “; echo ‘upload_max_filesize = ‘ . ini_get(‘upload_max_filesize’) . ” “; ini_set(‘max_execution_time’,’10′); ini_set(‘memory_limit’,’1024M’);

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ini_set(‘max_execution_time’,’10′);
ini_set(‘memory_limit’,’1024M’);

echo ‘max_execution_time = ‘ . ini_get(‘max_execution_time’) . ”

";

echo ‘memory_limit = ‘ . ini_get(‘memory_limit’) . ”

代码如下	复制代码
php_value upload_max_filesize “80M” php_value post_max_size “80M” php_value max_execution_time “2000″ php_value memory_limit “150M”

";

echo ‘post_max_size = ‘ . ini_get(‘post_max_size’) . ”

";

代码如下

复制代码

$old_max_execution_time = ini_set('max_execution_time', 120);    echo "old timeout is $old_max_execution_time ";    $max_execution_time = ini_get('max_execution_time');    echo "new timeout is $max_execution_time ";            echo 'function sets supported in this install are: ';   $extensions = get_loaded_extensions();   foreach ($extensions as $each_ext)   {     echo "$each_ext ";     echo ' ';     $ext_funcs = get_extension_funcs($each_ext);     foreach($ext_funcs as $func)     {        echo " $func ";     }     echo ' ';   } ?>

echo ‘upload_max_filesize = ‘ . ini_get(‘upload_max_filesize’) . ”

";

ini_set(‘max_execution_time’,’10′);
ini_set(‘memory_limit’,’1024M’);

Note:

ini_set(‘post_max_size’,’1024M’); ini_set(‘upload_max_filesize’,’1024M’); The correct way is to use .htaccess file:

The code is as follows

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php_value upload_max_filesize “80M” php_value post_max_size “80M” php_value max_execution_time “2000″ php_value memory_limit “150M” Instance setting max_execution_time

The code is as follows

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$old_max_execution_time = ini_set('max_execution_time', 120); echo "old timeout is $old_max_execution_time "; $max_execution_time = ini_get('max_execution_time'); echo "new timeout is $max_execution_time "; echo 'function sets supported in this install are: '; $extensions = get_loaded_extensions(); foreach ($extensions as $each_ext) { echo "$each_ext "; echo ' '; $ext_funcs = get_extension_funcs($each_ext); foreach($ext_funcs as $func) { echo " $func "; } echo ' '; } ?> Additional knowledge points: In fact, it is stated in the PHP documentation that the modifiable range of upload_max_filesize is PHP_INI_PERDIR. PHP_INI_PERDIR means that the domain directive can be modified in the php.ini, httpd.conf or .htaccess file. PHP_INI_SYSTEM domain directives can be modified in the php.ini and httpd.conf files Therefore, upload_max_filesize cannot be modified using int_set. Only the modifiable range is PHP_INI_ALL can be modified with int_set. magic_quotes_gpc is obtained with get_magic_quotes_gpc() and cannot be modified with set_magic_quotes_gpc because there is no such function. And magic_quotes_runtime can be set with set_magic_quotes_runtime() http://www.bkjia.com/PHPjc/632163.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/632163.htmlTechArticleUse ini_set to quickly modify the php.ini configuration settings without opening php.ini, especially You will discover the role of this function when you do not have permission to modify php.ini during virtual hosting...