- var_dump: documentation ( source)
- array_column: documentation ( source)
- print_r: documentation ( source)
<?php
class ColumnKeyClass {
function __toString() { return 'first_name'; }
}
class IndexKeyClass {
function __toString() { return 'id'; }
}
class ValueClass {
function __toString() { return '2135'; }
}
$column_key = new ColumnKeyClass();
$index_key = new IndexKeyClass();
$value = new ValueClass();
// Array representing a possible record set returned from a database
$records = array(
array(
'id' => $value,
'first_name' => 'John',
'last_name' => 'XXX'
),
array(
'id' => 3245,
'first_name' => 'Sally',
'last_name' => 'Smith'
),
);
var_dump($column_key);
var_dump($index_key);
var_dump($value);
var_dump($records[0]['id']);
$firstNames = array_column($records, $column_key, $index_key);
print_r($firstNames);
var_dump($column_key);
var_dump($index_key);
var_dump($value);
var_dump($records[0]['id']);