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Editor to share with you what the array-related functions in PHP are, I believe most people do not know much about it, so share this article for your reference, I hope you can learn a lot after reading this article, let's go to know it!

Array correlation function

Key: gets the subscript of the element pointed to by the current pointer to the current array

Current: gets the value of the current pointer to the element

Next: gets the value of the next element and moves the pointer down

Prev: gets the value of the previous element and moves the pointer up

End: moves the pointer to the last element of the array and returns the value of the final pointer position

Reset: moves the pointer to the first element of the array and returns the value of the final pointer position

Array_keys: gets all the key names of an array and returns an indexed array

Array_values: gets all the values of an array and returns an indexed array

Explode: explodes a string that divides an array into segments according to a specified rule (usually a special character), each of which is treated as an array element and returns an indexed array

Implode: glue all elements within an array into a string according to a specified rule (special characters).

Array_merge: merge, which refers to the accumulation of elements in two arrays. If the following array has the same subscript (key name: associated) as the previous array, then the value of the latter element will overwrite the previous one; if it is the same subscript of the index, the subscript will be automatically modified and superimposed into the previous array.

What language is php php, a nested acronym, is the abbreviation of English Hypertext preprocessing language (PHP:Hypertext Preprocessor). PHP is a kind of HTML embedded language. PHP is somewhat similar to Microsoft's ASP. It is a scripting language that embeds HTML documents on the server. The style of the language is similar to C language, and now it is widely used by many website programmers.

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