Php array push associative array

PHP Associative Arrays

Associative arrays are arrays that use named keys that you assign to them.

There are two ways to create an associative array: 

$age = array("Peter"=>"35", "Ben"=>"37", "Joe"=>"43");

or:

$age['Peter'] = "35";
$age['Ben'] = "37";
$age['Joe'] = "43";

The named keys can then be used in a script:

Example

$age = array("Peter"=>"35", "Ben"=>"37", "Joe"=>"43");
echo "Peter is " . $age['Peter'] . " years old.";
?>

Try it Yourself »

Loop Through an Associative Array

To loop through and print all the values of an associative array, you could use a foreach loop, like this:

Example

$age = array("Peter"=>"35", "Ben"=>"37", "Joe"=>"43");

foreach($age as $x => $x_value) {
  echo "Key=" . $x . ", Value=" . $x_value;
  echo "
";
}
?>

Try it Yourself »

Complete PHP Array Reference

For a complete reference of all array functions, go to our complete PHP Array Reference.

The reference contains a brief description, and examples of use, for each function!

PHP Exercises

Topic: PHP / MySQLPrev|Next

Answer: Use the Square Bracket [] Syntax

You can simply use the square bracket [] notation to add or push a key and value pair into a PHP associative array. Let's take a look at an example to understand how it basically works:

 "Apple", "b" => "Ball", "c" => "Cat");

// Adding key-value pairs to an array
$array["d"] = "Dog";
$array["e"] = "Elephant";

print_r($array);
?>

Related FAQ

Here are some more FAQ related to this topic:

• How to check if a key exists in an array in PHP
• How to check if a value exists in an array in PHP
• How to get all the keys of an associative array in PHP
• How to get all the values from an associative array in PHP

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More Detail

To create associative arrays in PHP, use [] brackets. You don't need to use array_push().

Example

 Live Demo

"101",
   'employeeFirstName'=>"John",
   'employeeLastName'=>"Doe",
   'employeeCountryName'=>"AUS"
];
$employeeDetails[] = [
   'emp_id' => $emp->employeeId,
   'emp_first_name' => $emp->employeeFirstName,
   'emp_last_name' => $emp->employeeLastName,
   'emp_country_name' => $emp->employeeCountryName
];
print_r(array_values($employeeDetails));
?>

Output

Array ( [0] => Array ( [emp_id] => 101 [emp_first_name] => John [emp_last_name] => Doe [emp_country_name] => AUS ) )

AmitDiwan

Updated on 12-Oct-2020 13:47:40

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PHPServer Side ProgrammingProgramming

Kickstart HTML, CSS and PHP: Build a Responsive Website

Featured

59 Lectures 8.5 hours

Ogbemudia Terry Osayawe

More Detail

To push values into an associative array, use the brackets [] []. At first create an associative array −

$details= array (
   'id' => '101',
   'name' => 'John Smith',
   'countryName' => 'US'
);

The PHP code is as follows to insert values −

Example

 Live Demo

 '101',
      'name' => 'John Smith',
      'countryName' => 'US'
   );
   $all_details['studentDetails'][] = $details;
   print_r($all_details);
?>

Output

Array (
 [studentDetails] => Array (
    [0] => Array (
       [id] => 101 [name] => John Smith [countryName] => US
      )
   )
)

AmitDiwan

Updated on 20-Nov-2020 05:38:42

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