- 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'; } }
$column_key = new ColumnKeyClass();
$index_key = new IndexKeyClass();
$records = array(
array(
'id' => 2135,
'first_name' => 'John',
'last_name' => 'XXX'
),
array(
'id' => 3245,
'first_name' => 'Sally',
'last_name' => 'Smith'
));
var_dump($column_key); var_dump($index_key);
$firstNames = array_column($records, $column_key, $index_key);
print_r($firstNames);
var_dump($column_key); var_dump($index_key);