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                合規國際互聯網加速 OSASE為企業客戶提供高速穩定SD-WAN國際加速解決方案。 廣告
                ## only方法 返回集合中給定鍵的所有項目 返回集合中給定鍵的所有項目。 ~~~ $collection = collect(['product_id' => 1, 'name' => 'Desk', 'price' => 100, 'discount' => false]); $filtered = $collection->only(['product_id', 'name']); $filtered->all(); // ['product_id' => 1, 'name' => 'Desk'] ~~~ > 與`only`相反的方法,請查看[except](http://www.hmoore.net/collections/except.md)。
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