PHP Manipulating an Array Removing elements from an array
Example
To remove an element inside an array, e.g. the element with the index 1.
$fruit = array("bananas", "apples", "peaches");
unset($fruit[1]);
This will remove the apples from the list, but notice that unset does not change the indexes of the remaining elements. So $fruit now contains the indexes 0 and 2.
For associative array you can remove like this:
$fruit = array('banana', 'one'=>'apple', 'peaches');
print_r($fruit);
/*
Array
(
[0] => banana
[one] => apple
[1] => peaches
)
*/
unset($fruit['one']);
Now $fruit is
print_r($fruit);
/*
Array
(
[0] => banana
[1] => peaches
)
*/
Note that
unset($fruit);
unsets the variable and thus removes the whole array, meaning none of its elements are accessible anymore.
Removing terminal elements
array_shift() - Shift an element off the beginning of array.
Example:
$fruit = array("bananas", "apples", "peaches");
array_shift($fruit);
print_r($fruit);
Output:
Array
(
[0] => apples
[1] => peaches
)
array_pop() - Pop the element off the end of array.
Example:
$fruit = array("bananas", "apples", "peaches");
array_pop($fruit);
print_r($fruit);
Output:
Array
(
[0] => bananas
[1] => apples
)
