Question

How to print array keys from multidimensional key value array in PHP

Answer 1

$array = array("php" => array("echo", "sizeof", "sort"),
               "c"  => array("printf", "isalpha", "malloc"));
 
$result = array_keys($array);

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

 

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Answer 2

$array = array("php" => array("echo", "sizeof", "sort"),
               "c"  => array("printf", "isalpha", "malloc"));
  
$result = array_keys($array);
 
echo "<pre>";
print_r($result);
echo "</pre>";
  
  
  
/*
run:
          
Array
(
    [0] => php
    [1] => c
)
        
*/

 

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