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php Programming Exercies

PHP Array Exercises : Remove a specified duplicate entry from an array

PHP Array: Exercise-44 with Solution

Write a PHP a function to remove a specified duplicate entry from an array.

Sample Solution:

PHP Code:

<?php
function array_uniq($my_array, $value) 
{ 
    $count = 0; 
    
    foreach($my_array as $array_key => $array_value) 
    { 
        if ( ($count > 0) && ($array_value == $value) ) 
        { 
            unset($my_array[$array_key]); 
        } 
        
        if ($array_value == $value) $count++; 
    } 
    
    return array_filter($my_array); 
} 
$numbers = array(4, 5, 6, 7, 4, 7, 8);

print_r(array_uniq($numbers, 7));
?>

Sample Output:

Array                                                       
(                                                           
    [0] => 4                                                
    [1] => 5                                                
    [2] => 6                                                
    [3] => 7                                                
    [4] => 4                                                
    [6] => 8                                                
)     

Flowchart:

Flowchart: PHP - Remove a specified, duplicate entry from an array

PHP Code Editor:

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Next: Write a PHP script to do a multi-dimensional difference, i.e. returns values of the first array that are not in the second array.

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