3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = array( "action: Added; amount: 1; code: RNA1; name: Mens Organic T-shirt; colour: White; size: XL", "action: Subtracted; amount: 7; code: RNC1; name: Kids Basic T-shirt; colour: Denim Blue; size: 3-4y", "action: Added; amount: 20; code: RNV1; name: Gift Voucher; style: Mens; value: £20", ); $result = array_map(function($line) { return array_combine(...array_map(null, ...array_chunk(preg_split('/[:;]\s+/', $line), 2))); }, $arr); print_r($result);

preferences:
22.57 ms | 408 KiB | 5 Q