php ini_set函数无效怎么解决

时间：2015-01-23 来源：西部数据作者：西部数据

利用ini_set可以快速的修改php.ini配置设置哦，无需打开php.ini就可以了，特别是虚拟主机时你没有修改php.ini的权限时就会发现这个函数的作用了，关于ini_set,post_max_size,upload_max_filesize,magic_quotes_gpc等用ini_set设置不了的解决办法!

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’);

注意:post_max_size,upload_max_filesize用下面的方法是修改不了的.

ini_set(‘post_max_size’,’1024M’);

ini_set(‘upload_max_filesize’,’1024M’);

正确做法是用.htaccess文件:

php_value upload_max_filesize “80M”

php_value post_max_size “80M”

php_value max_execution_time “2000″

php_value memory_limit “150M”

实例设置max_execution_time,代码如下:

<?

$old_max_execution_time = ini_set('max_execution_time', 120);

   echo "old timeout is $old_max_execution_time <br />";

   $max_execution_time = ini_get('max_execution_time');

   echo "new timeout is $max_execution_time <br />";

  echo 'function sets supported in this install are:<br />';

  $extensions = get_loaded_extensions();

  foreach ($extensions as $each_ext)

  {

    echo "$each_ext <br />";

    echo '<ul>';

    $ext_funcs = get_extension_funcs($each_ext);

    foreach($ext_funcs as $func)

    {

       echo "<li> $func </li>";

    }

    echo '</ul>';

  }

?>