SyntaxFix

[php] Php, wait 5 seconds before executing an action

i use this 

    $i = 1;
    $last_time = $_SERVER['REQUEST_TIME'];
    while($i > 0){
        $total = $_SERVER['REQUEST_TIME'] - $last_time;
        if($total >= 2){
            // Code Here
            $i = -1;
        }
    }

you can use 

function WaitForSec($sec){
    $i = 1;
    $last_time = $_SERVER['REQUEST_TIME'];
    while($i > 0){
        $total = $_SERVER['REQUEST_TIME'] - $last_time;
        if($total >= 2){
            return 1;
            $i = -1;
        }
    }
}

and run code =>

WaitForSec(your_sec);

Example : 

WaitForSec(5);

OR you can use sleep

Example : 

sleep(5);

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