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This article introduces the knowledge of "how to find the maximum value in the array". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

Two methods: 1, use max () to get the maximum value, syntax "max ($arr)". 2. Use "arsort ($arr)" to sort the array in descending order. The first element of the array after sorting is the maximum value, which can be taken out with "reset ($arr)" or "array_key_first ($arr)".

Operating environment of this tutorial: windows7 system, PHP7.1 version, DELL G3 computer

Two methods of finding the maximum value in Array by php

Method 1: directly use the built-in function max ()

The max () function can return the maximum value in an array

Method 2: sort the array elements in descending order and take out the first element

Use arsort () to sort the array in descending order

$arr=array (52 arr); var_dump ($arr)

Then the first element of the array, which is the maximum value needed, can be taken out.

To get the first element, you can use the reset () or array_key_first () function.

Array_key_first () gets the first key value of the specified array.

The reset () function points the inner pointer in the array to the first element and returns the value of the first array element, or the Boolean value False if the array is empty.

The maximum value of the echo array is: ".reset ($arr)."

The maximum value of the "; echo" array is: ".array _ key_first ($arr)

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