Question 280892 in PHP Question posted in
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Passing data between functions in PHP

I want to get random number and passing it between function I tried to tag $randId in user_edit.php?session= but when I tag the same variable $randId into ‘user_add.php?session=’. I cannot get the same random number, I just get nothing. I need a way of passing the same random number value between functions into user_add.php?session=

<?php 

function get_user_edit_link() {
        $url = "http://". $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];
        $x = pathinfo($url);

        $MIN_SESSION_ID = 1000000000;
        $MAX_SESSION_ID = 9999999999;
        $randId = mt_rand($MIN_SESSION_ID, $MAX_SESSION_ID);
        $randId = mt_rand($MIN_SESSION_ID, $MAX_SESSION_ID);

        return $ee = $x['dirname'] . 'user_edit.php?session='. $randId;
}

function get_user_add_link() {
        $url = "http://". $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];
        $x = pathinfo($url);
        return $ee = $x['dirname'] . 'user_add.php?session='. $randId;
}
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2

Answers


  1. 0

    You can try to create global variable and access it in each function. For example –

    $MIN_SESSION_ID = 1000000000;
$MAX_SESSION_ID = 9999999999;
$randId = mt_rand($MIN_SESSION_ID, $MAX_SESSION_ID);

function get_user_edit_link() {
    global $randId;
}

    this way it becomes accessible in both functions, allowing you to share the same random number between them.

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  2. 0

    Using global variables is generally considered bad practice. Better to pass the values into the functions that need them as an argument:

    <?php 

// declare functions.
function get_user_edit_link($randId) {
        $url = "http://". $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];
        $x = pathinfo($url);
        return $ee = $x['dirname'] . 'user_edit.php?session='. $randId;
}

function get_user_add_link($randId) {
        $url = "http://". $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];
        $x = pathinfo($url);
        return $ee = $x['dirname'] . 'user_add.php?session='. $randId;
}

// Create random ID
$MIN_SESSION_ID = 1000000000;
$MAX_SESSION_ID = 9999999999;
$randId = mt_rand($MIN_SESSION_ID, $MAX_SESSION_ID);

// Call your functions

$link = get_user_add_link($randId);
// or
$link = get_user_edit_link($randId);
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