CODEWITHSUNDEEP
php
Rakesh K
Rakesh K

Reputation: 1320

How to reset/change a variables value if while loop condition false in php

I have situation where i want to set some value to a php variable in a while loop. Please have a look at my code for better understanding.

$radioChecked = '';
$j=1;

while($j <= $someNumber){
$radioChecked = 'checked';
$j++; 
}

Now i want after finishing while loop my $radioChecked variable should have an empty string.

Actually i am trying to do this: i have some Radio buttons and i want to check some of them. how many checkboxes will be checked it will be depending on $someNumber variable.

Then i have checkboxes down: 

    for ($i = 0; $i < $total_radios; $i++){
    <input type="radio" <?php echo $radioChecked; ?> />
    }

Now here is the problem:

if i have 4 $total_radios then i am getting 4 radios displayed on the page which is good as i expecting that. If $someNumber is 2 then i want first 2 radio buttons to be checked. If $someNumber is 3 then i want first 3 radio buttons to be checked and so on.

But in my case it is checking all the Radio Buttons. I need some logic to reset $radioChecked variable to empty string if condition while loop condition false.

How can i do this? Thanks.

Upvotes: 0

Views: 812

Answers (3)

Barmar
Barmar

Reputation: 780818

Perform the test against $someNumber around the echo statement.

for ($i = 0; $i < $total_radios; $i++){ ?>
    <input type="radio" <?php if ($i < $someNumber) echo $radioChecked; ?> />
<?php 
}

You were also missing the ?> and <?php around the HTML body of the for loop.

Upvotes: 1

noid
noid

Reputation: 106

I think this would also work as a solution:

for ($i = 0; $i < $total_radios; $i++){
    <input type="radio" <?php echo $radioChecked; ?> />
    $j--;
    if ($j == 0) {
        $radioChecked = '';
    }
}

Upvotes: 0

Joel Hinz
Joel Hinz

Reputation: 25384

Why not just do it in the loop?

foreach ($total_radios as $i => $total){
    <input type="radio" <?php if ($i < $someNumber) echo 'checked'; ?> />
}

Mish-mash between php and html but the provided example is the same.

Upvotes: 3

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