Question

How to print array keys in PHP

Answer 1

$array = array('PHP', "Java", "C#");
  
$result = array_keys($array);
 
echo "<pre>";
print_r($result);
echo "</pre>";
     
  
  
  
/*
run:
          
Array
(
    [0] => 0
    [1] => 1
    [2] => 2
)
        
*/

 

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Answer 2

$array = array('PHP', "Java", "C#");
 
$result = array_keys($array);

for ($i = 0; $i < count($result); $i++) {
    echo $result[$i] . "<br />";
}
 
 
 
/*
run:
         
0
1
2
       
*/

 

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