<?php $testArray = array('foot', 'bike', 'car', 'plane'); next($testArray); next($testArray); echo prev($testArray); // bike ?>
Monthly Archives: May 2011
Fetch current element of an array – PHP
<?php $testArray = array('foot', 'bike', 'car', 'plane'); echo current($testArray); // foot ?>
Find out the next element of an array – PHP
<?php $testArray = array('foot', 'bike', 'car', 'plane'); secho next($testArray); // bike ?>
Function to exchanges keys with their associated values in an array – PHP
<?php $testArray = array("key1" => "Value1","key2" => "Value2","key3" => "Value3"); $testArray = array_flip($testArray); print_r($testArray); //Array ( [Value1] => key1 [Value2] => key2 [Value3] => key3 ) ?>
Sum of elements of an array – PHP
<?php $testArray = array(5, 3, 8, 10); echo "Sum is : ".array_sum($testArray) ; //Sum is : 26 ?>
function to checks whether given key or index exists in the array – PHP
<?php $search_array = array('key1' => 17, 'key2' => 74); if (array_key_exists('key1', $search_array)) { echo "The key 'key1' exists "; } //The key 'key1' exists ?>
Function to find out the number of occurrence elements in an array -PHP
<?php $testArray=array("Value1","Value1","Value1","Value2"); print_r(array_count_values($testArray)); //Array ( [Value1] => 3 [Value2] => 1 ) ?>
Creates an array by using one array for keys and another for its values – PHP
<?php $testArray1 = array('key1', 'key2', 'key3'); $testArray2 = array('value1', 'value2', 'value3'); $testArray3 = array_combine($testArray1, $testArray2); print_r($testArray3); //Array ( [key1] => value1 [key2] => value2 [key3] => value3 ) // NOTE : Make sure that the 2 arrays have equual // number of elements ?>
Function to combine arrays – PHP
<?php $testArray1 = array("place" => "kochi", 11, 12); $testArray2 = array("p", "s", "place" => "Tvm", "Width" => "10", 84); $testArray3 = array_merge($testArray1, $testArray2); print_r($testArray3); //Array ( [place] => Tvm [0] => 11 [1] => 12 [2] => p [3] //=> s [Width] => 10 [4] => 84 ) ?>
Convert the values of an array into uppercase – PHP
<?php $testArray = array("Value1","Value2", "Value3"); print_r(array_map('strtoupper', $testArray)); // Array ( [0] => VALUE1 [1] => VALUE2 [2] => VALUE3 ) ?>