Use the PHP function 'array_push' to push elements into an array

Use the PHP function "array_push" to push elements into an array

In PHP, an array is a very powerful and commonly used data structure that can store multiple values ​​of the same type. When we need to add new elements to the array, we can use the PHP built-in function "array_push" to achieve this. This article explains how to use the "array_push" function to push elements into an array, and provides relevant code examples.

In PHP, the "array_push" function is used to push one or more elements to the end of an array. This function accepts two parameters: one is the target array, and the other is the element to push (can be one or more elements). The "array_push" function adds elements to the end of the array and returns the length of the new array.

The following is a simple example of using the "array_push" function:

$fruits = array("apple", "banana", "orange");
$length = array_push($fruits, "pear");

echo "新数组的长度: " . $length . "
";
print_r($fruits);

In the above example, we first create an array containing three elements$fruits, respectively "apple", "banana" and "orange". We then use the "array_push" function to push the element "pear" to the end of the array $fruits and assign the return value to the variable $length. Finally, we use echo and print_r to output the length of the new array and the contents of the new array respectively.

Run the above code, the output result is as follows:

新数组的长度: 4
Array
(
    [0] => apple
    [1] => banana
    [2] => orange
    [3] => pear
)

As can be seen from the result, the element "pear" was successfully added to the array using the "array_push" function$fruits at the end, and the length of the new array returned by the function is 4. The contents of the new array are also printed correctly.

In addition to a single element, we can also pass multiple elements to the "array_push" function. The example is as follows:

$colors = array("red", "blue");
$length = array_push($colors, "yellow", "green");

echo "新数组的长度: " . $length . "
";
print_r($colors);

Run the above code, the output result is as follows:

新数组的长度: 4
Array
(
    [0] => red
    [1] => blue
    [2] => yellow
    [3] => green
)

Similarly, we use the "array_push" function to push the elements "yellow" and "green" to the end of the array $colors respectively. The function returns a new array with length 4 and prints the new array contents correctly.

To summarize, use the PHP function "array_push" to conveniently push one or more elements to the end of the array. The use of this function is very simple, just pass in the target array and the element to be pushed. By mastering the use of the "array_push" function, we can better operate and manage array data and improve the flexibility and efficiency of the program.

I hope this article will help you understand and learn how to use the PHP function "array_push". Thanks for reading!

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