How to solve the problem of invalid php ini_set function

How to solve the problem of invalid php ini_set function_PHP tutorial

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Release： 2016-07-13 10:56:25

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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

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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’) . ”
“;
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

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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 '

$func

';
}
?>

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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"; $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 '

$func

'; } ?> 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()