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Php prev

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Contents

PHP function prev

This function points to the previous array element. If there are no more elements, it returns FALSE.

Syntax prev

  • array: array input
prev(array);

Example 1

<?php

$array = array(
	 'Semester 1',
	 'Semester 2',
	 'Semester 3',
	 'Semester 4',
	 'Semester 5',
	 'Semester 6',
	 'Semester 7',
	 'Semester 8'
);
// by default, the pointer is on the first element semester 1
echo current($array) . "<br />"; // "semester 1"
// skip two semesters
next($array); // 
next($array); // 

echo current($array) . "<br/>"; // semester 3
echo prev($array) . "<br/>"; // semester 2 

// skip three semesters
next($array); //
next($array); //
next($array); //

echo current($array) . "<br />"; // "semester 5"
echo prev($array) . "<br/>"; // semester 4

// reset pointer, start again on semester 1
reset($array);
echo current($array) . "<br />"; // "semester 1"
?>

Output

Semester 1
Semester 3
Semester 2
Semester 5
Semester 4
Semester 1

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