PHP Ds\Vector push()用法及代码示例

Ds \ Vector::push()函数是PHP中的内置函数，用于将元素添加到向量的末尾。

用法:

void public Ds\Vector::push( $values )

参数：此函数接受单个参数$values，该参数包含一个或多个然后一个要添加到向量中的元素。

返回值：此函数不返回任何值。

以下示例程序旨在说明PHP中的Ds \ Vector::push()函数：

程序1:

<?php 
  
// Create new vector 
$arr1 = new \Ds\Vector([10, 20, 30, 40, 50]); 
  
echo("Original vector elements\n"); 
print_r($arr1); 
  
// Use push() function to add 
// element to the vector 
$arr1->push(60); 
  
echo("\nVector after appending the elements\n"); 
print_r($arr1); 
  
?>

输出：

Original vector elements
Ds\Vector Object
(
    [0] => 10
    [1] => 20
    [2] => 30
    [3] => 40
    [4] => 50
)

Vector after appending the elements
Ds\Vector Object
(
    [0] => 10
    [1] => 20
    [2] => 30
    [3] => 40
    [4] => 50
    [5] => 60
)

程序2:

<?php 
  
// Create new vector 
$arr1 = new \Ds\Vector([10, 20, 30, 40, 50]); 
  
echo("Original vector elements\n"); 
print_r($arr1); 
  
// Use push() function to add 
// element to the vector 
$arr1->push(...[60, 70]); 
  
echo("\nVector after appending the elements\n"); 
print_r($arr1); 
  
?>

输出：

Original vector elements
Ds\Vector Object
(
    [0] => 10
    [1] => 20
    [2] => 30
    [3] => 40
    [4] => 50
)

Vector after appending the elements
Ds\Vector Object
(
    [0] => 10
    [1] => 20
    [2] => 30
    [3] => 40
    [4] => 50
    [5] => 60
    [6] => 70
)

参考： http://php.net/manual/en/ds-vector.push.php