PHP - Call a function from a link\button

Question

I know that PHP is only server-side and it's impossible to call directly a PHP-FUNCTION from a link.

But I can't use JavaScript \ jQuery \ Ajax

This is my code in main.php

function refreshgt2(){
    for($l=1; $l!=$max_cicle; ++$l ) {
        $data->query("INSERT IGNORE INTO `table` (`name1`,`name1`,`anothername`,`dog`) VALUES ('ME','".$img[$l]."','".$l."','".$hello[$l]."')");        
    }       
}

And the html,

<a href="#" >Do something</a>

I've just tried with this need a button that calls a php function but didn't work for me.

Someone can help me?

I need something that load the function only when I will press the link\button\image

So why can't you use Ajax? Is the php not the same origin?Even though you can try request via jsonp, like xxx.php?callback=cb&param=abc. — Fly_pig
– Fly_pig, Commented Sep 5, 2013 at 8:09
My link is: localhost/index.php?opz=zen the index.php call zen.php and zen.php call main.php. In this case a can use ajax? — enrico-dev
– enrico-dev, Commented Sep 5, 2013 at 8:58
Of course you can, you just need an ajax request, zen.php in this case.And it returns json/xml data, and you get it and invoke js function.As for zen.php calls main.php, that's server-side matter, require_once('main.php') ,run the function/method, and return result. — Fly_pig
– Fly_pig, Commented Sep 6, 2013 at 2:00

Jacky Cheng · Accepted Answer · 2013-09-05 08:24:21Z

2

this should work. it gives a button, support multiple function call and is pure php + html

<form action="<?php $_PHP_SELF ?>" method="post">
<input type="hidden" name="function" value="refreshgt2">
<input type="submit">
</form>

<?php 
if($_POST!=null && array_key_exists('function', $_POST)){
    if(strcasecmp($_POST['function'],'refreshgt2')==0){
        for($l=1; $l!=$max_cicle; ++$l )
        {
            $data->query("INSERT IGNORE INTO `table` (`name1`,`name1`,`anothername`,`dog`) VALUES ('ME','".$img[$l]."','".$l."','".$hello[$l]."')");        
        }
    }else if(strcasecmp($_POST['function'],'some_other_function')==0){
        //do things
    }
}
?>

answered Sep 5, 2013 at 8:24

Jacky Cheng

1,5561 gold badge10 silver badges23 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

Hanky Panky · Accepted Answer · 2013-09-05 07:58:15Z

0

But i cant's use a javascript\jquery\ajax

Then the answer is No, you can not. Only option is to link your button to a new page which will generate the PHP output. PHP itself does not know anything about what you do at client side and whether you have clicked a link, PHP functions cannot execute at that time since PHP has already done its job and gone.

answered Sep 5, 2013 at 7:58

Hanky Panky

46.9k9 gold badges76 silver badges95 bronze badges

Comments

DGS · Accepted Answer · 2013-09-05 08:00:38Z

0

If you dont mind a redirect

<a href="your_php_script.php" >Do something</a>

you_php_script.php

<?php

refreshgt2();

answered Sep 5, 2013 at 8:00

DGS

6,0251 gold badge23 silver badges37 bronze badges

Comments

acme · Accepted Answer · 2013-09-05 08:00:55Z

0

If you can't use javascript/ajax (why not? we are in 2013), you can't refresh part of the page on the fly. Your only chance is to call a page like

<a href="my-script.php">Do something</a>

and my-script.php then renders the page again after doing some stuff.

answered Sep 5, 2013 at 8:00

acme

14.9k8 gold badges77 silver badges114 bronze badges

Comments

johnnynotsolucky · Accepted Answer · 2013-09-05 08:05:15Z

0

Use querystrings, set the href in your html to point to your page, and add a querystring parameter so that your php can decide which function to execute:

HTML

<a href='main.php?fn=some_function'>Do something<a/>

PHP

switch($_GET['fn']) {
case 'some_function':
    //call your function 
    break;
default:
    //Handle this
}

Otherwise, redirect to another php script like the other answers mentioned.

answered Sep 5, 2013 at 8:05

johnnynotsolucky

5403 silver badges16 bronze badges

Collectives™ on Stack Overflow

PHP - Call a function from a link\button

5 Answers 5

Comments

Comments

Comments

Comments

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

5 Answers 5

Comments

Comments

Comments

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related