php - array_chunk

Description

array array_chunk ( array $input, int $size [, bool $preserve_keys] )

Chunks an array into size large chunks. The last chunk may contain less than size elements.

Parameters

input

The array to work on

size

The size of each chunk

preserve_keys

When set to TRUE keys will be preserved. Default is FALSE which will reindex the chunk numerically

Return Values

Returns a multidimensional numerically indexed array, starting with zero, with each dimension containing size elements.

Errors/Exceptions

If size is less than 1 E_WARNING will be thrown and NULL returned.

Examples

Example 229. array_chunk() example

$input_array = array('a', 'b', 'c', 'd', 'e');
print_r(array_chunk($input_array, 2));
print_r(array_chunk($input_array, 2, true));


The above example will output:

Array (    
[0] => Array(            
[0] => a            
[1] => b        
)     
[1] => Array(            
[0] => c            
[1] => d        
)     
[2] => Array(
[0] => e        
) 
)
Array (    
[0] => Array(            
[0] => a            
[1] => b        
)     
[1] => Array(            
[2] => c            
[3] => d        
)     
[2] => Array(            
[4] => e        
) 
)