php array_slice() function

Translation results：

英[slaɪs] 美[slaɪs]

vt. Cut into slices; cut off; divide

n. Thin slice; part; (a curveball hit due to a mistake)

vi. Slash

Third person singular: slices Plural: slices Present participle: slicing Past tense: sliced Past participle: sliced

php array_slice() functionsyntax

Function: Retrieve a value from the array based on conditions and return

Syntax: array_slice(array,start,length,preserve)

Parameters:

Parameters	Description
array	Required. Specifies an array.
start	Required. numerical value. Specifies the starting position of the element to be retrieved. 0 = first element. If the value is set to a positive number, it will be taken from front to back. If the value is set to a negative number, the absolute value of start is taken from back to front. -2 means start from the second to last element of the array.
length	Optional. numerical value. Specifies the length of the returned array. If the value is set to an integer, that number of elements is returned. If this value is set to a negative number, the function will terminate fetching this far from the end of the example array. If this value is not set, all elements starting from the position set by the start parameter to the end of the array are returned.
preserve	Optional. Specifies whether the function retains key names or resets key names. Possible values: true - keep key names, false - default. Reset key name

Note: If the array has a string key, the returned array will retain the key name.

<?php
$class=array("西门","灭绝","无忌","peter");
print_r(array_slice($class,0,2));
?>

Click the "Run instance" button to view the online instance

Output:

Array ( [0] => 西门 [1] => 灭绝 )

<?php
$a=array("灭绝","西门","无忌","欧阳克","韦小宝");
print_r(array_slice($a,1,2,true));
?>

Click the "Run Instance" button to view the online instance

Output:

Array ( [1] => 西门 [2] => 无忌 )