How to get all the keys of an associative array in PHP
In this post we will give you information about How to get all the keys of an associative array in PHP. Hear we will give you detail about How to get all the keys of an associative array in PHPAnd how to use it also give you demo for it if it is necessary.
Use the PHP array_keys() function
You can use the PHP array_keys() function to get all the keys out of an associative array.
Let’s try out an example to understand how this function works:
<?php
$cities = array("France"=>"Paris", "India"=>"Mumbai", "UK"=>"London", "USA"=>"New York");
// Get keys from cities array
print_r(array_keys($cities));
?>You can also use the PHP foreach loop to find or display all the keys, like this:
<?php
$cities = array("France"=>"Paris", "India"=>"Mumbai", "UK"=>"London", "USA"=>"New York");
// Loop through cities array
foreach($cities as $key => $value){
echo $key . " : " . $value . "<br>";
}
?>
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