How do I delete array elements one by one every time I reload the page?

Question

<?php
    session_start();    
    $_SESSION['del']=array("a1","a2","a3","a4","a5");
    unset($_SESSION['del'][0]);
    echo implode(" ",$_SESSION['del'])    
?>

How do I remove each array element one by one every time I refresh the page?

This code won't work as you expect because you're reinitialising the array before you unset the first element. Every load will show the same result. Reorganise the code to fix this and try again. — , Sep 12 '13 at 01:48
sorry, i'm new to php , also new to here too. i don't know how to fix my code. that is why i'm trying to get some helps from here. THanks for your answer and time. — facebook man, Sep 12 '13 at 01:51

dkkumargoyal · Accepted Answer · 2013-09-12T02:10:30.467

1

here is the code

<?php
session_start();    
if(isset($_SESSION['del'])) {  // to make sure array is not set again as in question
    unset($_SESSION['del'][0]); // remove the first element
    $_SESSION['del'] = array_values($_SESSION['del']); // to shift rest of the elements one location left for making indexes starts from 0
} else { // set session array only once
    $_SESSION['del']=array("a1","a2","a3","a4","a5");
}
echo implode(" ",$_SESSION['del']); // print results    
?>

edited Sep 12 '13 at 02:10

answered Sep 12 '13 at 01:59

dkkumargoyal

556
3
10

1

It would be better you explain what you do here, as the OP is unfamiliar with php, or coding it seems as a whole. – Daedalus Sep 12 '13 at 02:00
@Daedalus comments added – dkkumargoyal Sep 12 '13 at 02:11

score 1 · Answer 2 · answered Sep 12 '13 at 02:12

1

if(isset($_SESSION['del']))
{
 if(is_array($_SESSION['del']))
 {
  array_shift($_SESSION['del']);
 }
}

Code Explanation

if the session del is currently set.

and that the session['del'] is an array

remove the first value of the array del.

answered Sep 12 '13 at 02:12

Nicolas Racine

1,031
3
13
35

score 0 · Answer 3 · answered Sep 12 '13 at 01:35

0

I am not sure if it works with $_SESSION, but if it is an array then array_shift() would be what you are looking for:

array_shift($_SESSION['del']);

answered Sep 12 '13 at 01:35

Sverri M. Olsen

13,055
3
36
52

How do I delete array elements one by one every time I reload the page?

3 Answers3