dongshui9690 2011-11-25 01:01
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PHP:撤消set_time_limit?

I have a function that I know takes a long time to execute. Thus, I want to do this at the beginning of the function:

set_time_limit(0);

When I am done with the function, will time limit be returned to whatever it was originally? Or should I set it back to what it was originally? If so, how do I get the original max execution time?

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  • dqeq885710 2011-11-25 08:32
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    You can use http://www.php.net/manual/en/function.get-cfg-var.php or a class like this:

    class TempIniValues {
    
        private $original_settings = array();
    
        public function __construct($var_name, $value) {
            $this->set($var_name, $value);
        }
    
        public function set($var_name, $value) {
            $this->original_settings[$var_name] = ini_get($var_name);
            ini_set($var_name, $value);
        }
    
        public function get($var_name, $if_orig=false) {
            return $if_orig?$this->get_orig($var_name):ini_get($var_name);
        }
    
        public function get_orig($var_name) {
            return isset($this->original_settings[$var_name])?$this->original_settings[$var_name]:NULL;
        }
    
        public function __destruct() {
            foreach($this->original_settings AS $setting_name => $setting_value) {
                ini_set($setting_name,$setting_value);
            }
        }
    
    }
    
    
    function test() {
        var_dump(ini_get('max_execution_time'));
        $temp_ini=new TempIniValues('max_execution_time',42);
        var_dump(ini_get('max_execution_time'));
    }
    
    var_dump(ini_get('max_execution_time'));
    test();
    var_dump(ini_get('max_execution_time'));
    
    本回答被题主选为最佳回答 , 对您是否有帮助呢?
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