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This article mainly introduces the relevant knowledge of "what is the effective range of declare (strict_types=1) in php". The editor shows you the operation process through an actual case. The method of operation is simple and fast, and it is practical. I hope that this article "what is the effective range of declare (strict_types=1) in php" can help you solve the problem.

On the valid range of declare (strict_types=1)

Declare (strict_type=1); is the specified syntax of the strict type checking mode introduced by php7 where the basic syntax should be written for a single file strict_types

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