Question

How to fetch a key from an array in PHP

Answer 1

$arr = array(
    'a' => 'C',
    'b' => 'C++',
    'c' => 'PHP',
    'd' => 'Java');

while ($pl = current($arr)) 
{
    if ($pl == 'C++') 
        echo key($arr).'<br />';
    
    next($arr);
}


/*
run: 

b

*/

 

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Answer 2

$arr = array(
    'a' => 'C',
    'b' => 'C++',
    'c' => 'PHP',
    'd' => 'Java');

while ($pl = current($arr)) 
{
    echo key($arr).'<br />';
    
    next($arr);
}


/*
run: 

a
b
c
d

*/

 

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