Delete an (exact) element from an array in php

Question

Hi Masters!

For example i have an array like this:

  $test= array("0" => "412", "1" => "2"); 

I would like to delete the element if its = 2

 $delete=2;
 for($j=0;$j<$dbj;$j++) {
     if (in_array($delete, $test)) {    
         unset($test[$j]);
     }
 }
 print_r($test);

But with this, unfortunatelly the array will empty...
How can i delete an exact element from the array?
Thank you

Answer 1

In the loop you're running the test condition is true because $delete exists in the array. So in each iteration its deleting the current element until $delete no longer exists in $test. Try this instead. It runs through the elements of the array (assuming $dbj is the number of elements in $delete) and if that element equals $delete it removes it.

$delete=2;
for($j=0;$j<$dbj;$j++) {
    if ($test[$j]==$delete)) {  
        unset($test[$j]);
    }
}
print_r($test);

Answer 2

Try

if( $test[$j] == $delete )
    unset( $test[$j] );

What your current code does is search the whole array for $delete every time, and the unset the currently iterated value. You need to test the currently iterated value for equality with $delete before removing it from the array.

Answer 3

$key = array_search(2, $test);
unset($test[$key]);

Answer 4

What do you mean in exact?

I you would ike to delete element with key $key:

unset($array[$key]);

If specified value:

$key = array_search($value, $array);
unset($array[$key]);

Answer 5

To delete a specific item from an array, use a combination of array_search and array_splice

$a = array('foo', 'bar', 'baz', 'quux');
array_splice($a, array_search('bar', $a), 1);
echo implode(' ', $a); // foo baz quux