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This article mainly shows you "how to add elements to php", the content is simple and easy to understand, and the organization is clear. I hope it can help you solve your doubts. Let Xiaobian lead you to study and learn "how to add elements to php".

Php increase the elements of the method: 1, through the assignment to increase the array elements;2, through the array_push function to increase the array elements;3, through the array_unshift function to increase the elements;4, through the array_pad function to increase the elements.

Operating environment: Windows 7 system, PHP7.4 version, DELL G3 computer

1. How to add array elements in PHP:

(1)Add array elements by assignment:$states ['name ']='Tom';

(2)int array_push(array target_array,mixed variable [,mixed variable…]) adds variable to the end of target_array, returns true on success, otherwise returns false, where variable can be multiple;

(3)int array_unshift(array target_array,mixed variable [,mixed variable…]) The function adds variable to the array header of target_array, returning true on success, false otherwise, where variable can be multiple. All existing numeric keys are modified accordingly, while associated keys are unaffected;

array_pad(array target_array,integer length,mixed pad_value) Increases the size of target_array to the length specified by length.

Specific methods:

1. Use the array_merge method to implement functionality similar to array_unshift adding elements at the beginning

The code is as follows:

2.+ operator

The code is as follows:

The output is the same as using the array_merge method.

3. Add associative array elements to the end of an element

The code is as follows:

That's all for "how to add elements to php", thanks for reading! I believe that everyone has a certain understanding, hope to share the content to help everyone, if you still want to learn more knowledge, welcome to pay attention to the industry information channel!

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