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<?php $json = '{ "rate":{ "items":[ { "name":"My Product 3", "sku":null, "quantity":1, "grams":1000, "price":2000, "vendor":"TestVendor", "requires_shipping":true, "taxable":true, "fulfillment_service":"manual" }, { "name":"My Product 1", "sku":null, "quantity":1, "grams":500, "price":1000, "vendor":"TestVendor", "requires_shipping":true, "taxable":true, "fulfillment_service":"manual" }, { "name":"My Product 2", "sku":null, "quantity":1, "grams":2000, "price":3000, "vendor":"TestVendor", "requires_shipping":true, "taxable":true, "fulfillment_service":"manual" } ], "currency":"CAD" }}'; $array = json_decode($json, true); var_export( array_sum( array_column( $array['rate']['items'], 'grams' ) ) );
Output for git.master, git.master_jit, rfc.property-hooks
3500

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