php add item to array | BTCC Knowledge

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What is array_unshift in PHP?

The PHP’s array_unshift function is used to add elements to the beginning or staring of an array. As with PHP array_push, pass the array first, followed by any number of elements you would like to add to the array. Arrays with numeric indexes have those indexes re-numbered starting from 0 (zero).

How to add multiple elements to an array in PHP?

The array_push is another inbuilt function that can be used in PHP to add to arrays. This method can be used to add multiple elements to an array at once. array - Required, this parameter specifies the array you are looking to append The array_push returns the number of elements in the array.

What does array_push do in JavaScript?

The array_push () function inserts one or more elements to the end of an array. Tip: You can add one value, or as many as you like. Note: Even if your array has string keys, your added elements will always have numeric keys (See example below). array_push ( array, value1, value2, ... ) Required. Specifies an array Optional.

How do I add an object as an array key in PHP?

From a PHP perspective these are O (1) (without getting into what's going on in the interpreter), instead of O (n). If you need to add an object as an array key, for example an object from Simple XML Parser, you can use the following. By telling the key to read the object as a string, it will let you set it. Hope this helps someone out!

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