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PHP Basic

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Text lesson

pos()

Example

Display the value of the current element in an array.

<?php
$people = array(“Peter”“Joe”“Glenn”“Cleveland”);

echo pos($people) . “<br>”;
?>

Definition and Usage

The pos() function returns the value of the current element in an array. It is an alias of the current() function. Each array has an internal pointer to its “current” element, which starts at the first element inserted. Note: This function does not move the array’s internal pointer.

Related methods:

  • current() – returns the value of the current element in an array
  • end() – moves the internal pointer to the last element in the array and outputs its value
  • next() – moves the internal pointer to the next element in the array and outputs its value
  • prev() – moves the internal pointer to the previous element in the array and outputs its value
  • reset() – moves the internal pointer to the first element in the array
  • each() – returns the key and value of the current element and moves the internal pointer forward

Syntax

pos(array)

Parameter Values

Parameter

Description

array

Required. Specifies the array to be used.

Technical Details

Return Value:

Returns the value of the current element in an array, or FALSE if the element is empty or has no value.

PHP Version:

4+

More Examples

Example

An example illustrating all related methods:

<?php
$people = array(“Peter”“Joe”“Glenn”“Cleveland”);

echo current($people) . “<br>”// The current element is Peter
echo next($people) . “<br>”// The next element of Peter is Joe
echo current($people) . “<br>”// Now the current element is Joe
echo prev($people) . “<br>”// The previous element of Joe is Peter
echo end($people) . “<br>”// The last element is Cleveland
echo prev($people) . “<br>”// The previous element of Cleveland is Glenn
echo current($people) . “<br>”// Now the current element is Glenn
echo reset($people) . “<br>”// Moves the internal pointer to the first element of the array, which is Peter
echo next($people) . “<br>”// The next element of Peter is Joe

print_r (each($people)); // Returns the key and value of the current element (now Joe), and moves the internal pointer forward
?>