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<?php $data = array( 0 => array( 'event' => 'Conference', 'budget' => 3700, ), 1 => array( 'event' => 'Conference', 'budget' => 500, ), 2 => array( 'event' => 'Showroom', 'budget' => 1000, ), 3 => array( 'event' => 'Mission Chez client', 'budget' => 2000, ), 4 => array( 'event' => 'Séminaire', 'budget' => 700, ), 5 => array( 'event' => 'Livraison', 'budget' => 4000, ), 6 => array( 'event' => 'Conference', 'budget' => 334, ), ); var_export( array_reduce( $data, function ($carry, $row) { $carry[$row['event']] = ($carry[$row['event']] ?? 0) + $row['budget']; return $carry; } ) );
Output for 7.0.0, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.4, 8.3.6 - 8.3.7
array ( 'Conference' => 4534, 'Showroom' => 1000, 'Mission Chez client' => 2000, 'Séminaire' => 700, 'Livraison' => 4000, )
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 array ( 'Conference' => 4534, 'Showroom' => 1000, 'Mission Chez client' => 2000, 'Séminaire' => 700, 'Livraison' => 4000, )

preferences:
98.08 ms | 402 KiB | 159 Q