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<?php $array = [ 'SellerSKUList.SellerSKU.10=4574&', 'SellerSKUList.SellerSKU.11=4575&', 'SellerSKUList.SellerSKU.18=4582&', 'SellerSKUList.SellerSKU.19=4583&', 'SellerSKUList.SellerSKU.1=4565&', 'SellerSKUList.SellerSKU.20=4584&', 'SellerSKUList.SellerSKU.2=4566', ]; array_multisort(array_map(fn($v) => strtok($v, '='), $array), $array); var_export($array);

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