How to use php current function?

php current function is used to return the value of the current element in the array. Its syntax is current(array). The parameter array is required and refers to the array to be used. This function does not move the array internal pointer, to do this, use the next() and prev() functions.

#How to use php current function?

Definition and usage

current() function returns the value of the current element in the array.

Each array has an internal pointer pointing to its "current" element, which initially points to the first element inserted into the array.

Tip: This function does not move the internal pointer of the array. To do this, use the next() and prev() functions.

Related methods:

● end() - Point the internal pointer to the last element in the array and output

● next() - Point the internal pointer to the next element in the array and output

● prev() - Point the internal pointer to the previous element in the array and output

● reset() - Will The internal pointer points to the first element in the array and outputs

● each() - returns the key name and key value of the current element and moves the internal pointer forward

Syntax

current(array)

Parameters

array required. Specifies the array to use.

Description

The current() function returns the current element (unit) in the array.

Each array has an internal pointer pointing to its "current" element, initially pointing to the first element inserted into the array.

The current() function returns the value of the array element currently pointed to by the internal pointer, without moving the pointer. If the internal pointer points beyond the end of the cell list, current() returns FALSE.

Return value: Returns the value of the current element in the array. If the current element is empty or the current element has no value, it returns FALSE.

PHP Version: 4

Example 1

Demonstrates all relevant methods:

<?php
$people = array("Bill", "Steve", "Mark", "David");
echo current($people) . "<br>"; // 当前元素是 Bill
echo next($people) . "<br>"; // Bill 的下一个元素是 Steve
echo current($people) . "<br>"; // 现在当前元素是 Steve
echo prev($people) . "<br>"; // Steve 的上一个元素是 Bill
echo end($people) . "<br>"; // 最后一个元素是 David
echo prev($people) . "<br>"; // David 之前的元素是 Mark
echo current($people) . "<br>"; // 目前的当前元素是 Mark
echo reset($people) . "<br>"; // 把内部指针移动到数组的首个元素，即 Bill
echo next($people) . "<br>"; // Bill 的下一个元素是 Steve
print_r (each($people)); // 返回当前元素的键名和键值（目前是 Steve），并向前移动内部指针
?>

Output:

Bill
Steve
Steve
Bill
David
Mark
Mark
Bill
Steve
Array ( [1] => Steve [value] => Steve [0] => 1 [key] => 1 )

Example 2

Output the value of the current element in the array:

<?php
$people = array("Bill", "Steve", "Mark", "David");
echo current($people) . "<br>";
?>

Output:

Bill

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