PHP array_slice() Function


Complete PHP Array Reference

Definition and Usage

The array_slice() function returns selected parts of an array.

Syntax

array_slice(array,start,length,preserve)

Parameter Description
array Required. Specifies an array
start Required. Numeric value. Specifies where the function will start the slice. 0 = the first element. If this value is set to a negative number, the function will start slicing that far from the last element. -2 means start at the second last element of the array.
length Optional. Numeric value. Specifies the length of the returned array. If this value is set to a negative number, the function will stop slicing that far from the last element. If this value is not set, the function will return all elements, starting from the position set by the start-parameter.
preserve Optional. Possible values:
  • true -  Preserve keys
  • false - Default - Reset keys



Tips and Notes

Note: If the array have string keys, the returned array will allways preserve the keys. (See Example)

Example

<?php
$a=array(0=>"Dog",1=>"Cat",2=>"Horse",3=>"Bird");
print_r(array_slice($a,1,2));
?>

The output of the code above will be:

Array ( [0] => Cat [1] => Horse )


Example

With a negative start parameter:

<?php
$a=array(0=>"Dog",1=>"Cat",2=>"Horse",3=>"Bird");
print_r(array_slice($a,-2,1));
?>

The output of the code above will be:

Array ( [0] => Horse )


Example

With the preserve parameter set to true:

<?php
$a=array(0=>"Dog",1=>"Cat",2=>"Horse",3=>"Bird");
print_r(array_slice($a,1,2,true));
?>

The output of the code above will be:

Array ( [1] => Cat [2] => Horse )


Example

With string keys:

<?php
$a=array("a"=>"Dog","b"=>"Cat","c"=>"Horse","d"=>"Bird");
print_r(array_slice($a,1,2));
?>

The output of the code above will be:

Array ( [b] => Cat [c] => Horse )


Complete PHP Array Reference
Have Any Suggestion? We Are Waiting To Hear from YOU!

Your Query was successfully sent!