PHP code example of justinskolnick / key-value

1. Go to this page and download the library: Download justinskolnick/key-value library. Choose the download type require.

2. Extract the ZIP file and open the index.php.

3. Add this code to the index.php. 
    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

justinskolnick / key-value example snippets



$collection = new KeyValue();
$collection->set( 'id', 'bffc4d08-1750-41a7-9fdd-345187eb9ff2' );

echo $collection->get( 'id' ); // 'bffc4d08-1750-41a7-9fdd-345187eb9ff2'



$id = $collection->get( 'id' );


$timestamp = $collection->get( 'created/timestamp' );


$collection = new KeyValue();


$collection = new KeyValue(
  [
    'id'            => 'bffc4d08-1750-41a7-9fdd-345187eb9ff2',
    'phone_number'  => 8675309,
    'was_saved'     => false,
  ]
);


$collection->set( 'id', 'bffc4d08-1750-41a7-9fdd-345187eb9ff2' );
$collection->setMany(
  [
    'id'            => 'bffc4d08-1750-41a7-9fdd-345187eb9ff2',
    'phone_number'  => 8675309,
    'was_saved'     => false,
    'created'   => [
      'readable'  => 'November 7, 2025',
      'timestamp' => '2025-11-07 01:23:45',
    ],
  ]
);


if ( $collection->hasAny() ) {
  return true;
}


if ( $collection->has( 'id' ) ) {
  return true;
}

if ( $collection->hasValueAt( 'id' ) ) {
  return true;
}


$id = $collection->get( 'id' );


$all = $collection->getAll();
$keys = $collection->getKeys();
$values = $collection->getValues();


if ( $collection->delete( 'id' ) ) {
  echo $collection->get( 'id' ); // null
}


$collection = new KeyValue(
  [
    'ducks'   => 3,
    'dogs'    => 4,
    'horses'  => 2,
  ]
);

$collection->set( 'dogs', 6 );

if ( $collection->reset() ) {
  echo $collection->get( 'dogs' ); // 4
}


$collection = new KeyValue(
  [
    'ducks'   => 3,
    'dogs'    => 4,
    'horses'  => 2,
  ]
);

if ( $collection->reset( true ) ) {
  echo $collection->get( 'dogs' ); // null
}


if ( $collection->isEmpty() ) {
  return true;
}


$collection = new KeyValue( [] );

if ( $collection->isEmpty( true ) ) {
  return true;
}


if ( $collection->isNull() ) {
  return true;
}