To capture the results in an array, add the name of the array as a second argument to exec .

为了捕捉数组中的结果，要将该数组的名称作为第二个参数添加到exec 。

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The array brackets come after the argument name instead of after the type.

数组括号紧接参数名之后，而非类型之后。

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The name and location of the file are specified in the output key of the $options array, which is passed to dumpDatabase() as the second argument.

文件名及位置在 $options 数组的 output 键中进行指定，该数组作为 dumpDatabase() 方法的第二个参数传入。

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