Php array slice
From w3cyberlearnings
Contents |
PHP function array_slice
This function splits array and returns part of the array accordingly.
Syntax array_slice
- array: array input
- start: starts position (positive number slices from the beginning, and negative number slices from the end)
- length (optional): the length of the array return
- preserve (optional): True (preserves key), False (not preserve key)
array_slice(array, start, length, preserve);
Example 1
<?php
$records = array('Alyssa', 'Emma', 'Landon', 'Alex', 'Christ', 'Sam', 'Mark');
$a1 = array_slice($records, 2); // Landon, Alex, Christ, Sam, Mark
$a2 = array_slice($records, 3); // Alex, Christ, Sam, Mark
$a3 = array_slice($records, -1); // Mark
$a4 = array_slice($records, -2); // Sam, Mark
$a5 = array_slice($records, 0, 2); // Alyssa, Emma
$a6 = array_slice($records, 2, 2); // Landon, Alex
$a7 = array_slice($records, -1); // Mark
$a8 = array_slice($records, 2, 3); // Landon, Alex, Christ
print_r($a1);
print_r($a2);
print_r($a3);
print_r($a4);
print_r($a5);
print_r($a6);
print_r($a7);
print_r($a8);
?>
Output
Array
(
[0] => Landon
[1] => Alex
[2] => Christ
[3] => Sam
[4] => Mark
)
Array
(
[0] => Alex
[1] => Christ
[2] => Sam
[3] => Mark
)
Array
(
[0] => Mark
)
Array
(
[0] => Sam
[1] => Mark
)
Array
(
[0] => Alyssa
[1] => Emma
)
Array
(
[0] => Landon
[1] => Alex
)
Array
(
[0] => Mark
)
Array
(
[0] => Landon
[1] => Alex
[2] => Christ
)
Example 2: array keys preserve
<?php $records = array( 33 => 'Alyssa', 44 => 'Emma', 55 => 'Landon', 66 => 'Alex', 77 => 'Christ', 88 => 'Sam', 99 => 'Mark'); $a1 = array_slice($records, 2,2,true); print_r($a1); ?>
Output
Array
(
[55] => Landon
[66] => Alex
)
Example 3: array index is not preserve
<?php $records = array( 33 => 'Alyssa', 44 => 'Emma', 55 => 'Landon', 66 => 'Alex', 77 => 'Christ', 88 => 'Sam', 99 => 'Mark'); $a1 = array_slice($records, 2,2,false); print_r($a1); ?>
Output
Array
(
[0] => Landon
[1] => Alex
)
Related Links
- array_change_key_case
- array_chunk
- array_combine
- array_count_values
- array_diff_assoc
- array_diff_key
- array_diff_uassoc
- array_diff_ukey
- array_diff
- array_fill_keys
- array_fill
- array_filter
- array_flip
- array_intersect_assoc
- array_intersect_key
- array_intersect_uassoc
- array_intersect_ukey
- array_intersect
- array_key_ exists
- array_keys
