Equivalent to Alert () and Prompt () in PHP
In JavaScript, we have Alert () and Prompt () that open a popup for the user.
Is there an equivalent for PHP?
$Get_['asdf']
is one way to get user input ... any others?
Also, one more question. Is it a requirement that PHP always be executed right away? Or it could be like JavaScript where it waits for user input (like a popup) and then executes the rest of the code after that.
PHP is a server side language, it cannot generate client side warning messages. But you can use javascript inside php for warning.
<script type="text/javascript">
window.alert("Hi There, I am the Alert Box!")
</script>
For a hint, you can do something like this -
<?php
//prompt function
function prompt($prompt_msg){
echo("<script type='text/javascript'> var answer = prompt('".$prompt_msg."'); </script>");
$answer = "<script type='text/javascript'> document.write(answer); </script>";
return($answer);
}
//program
$prompt_msg = "Please type your name.";
$name = prompt($prompt_msg);
$output_msg = "Hello there ".$name."!";
echo($output_msg);
?>
No, there is no equivalent. All php is only executed on the server side. If you are not using it on the command line, which I doubt.
It also can't wait for user input like javascript as you wanted. I'm sorry. You will need to use ajax for this.
This:
$should_proceed = readline('Are you wanna proceed?(y/n): ');
if (strtolower(trim($should_proceed)) == 'n') exit;
proceed();