CakeFest 2024: The Official CakePHP Conference

预定义常量

下列常量由此扩展定义,且仅在此扩展编译入 PHP 或在运行时动态载入时可用。

EXIF_USE_MBSTRING (int)
如果启用了 mbstring,这个常量的值为 1, 否则为 0

exif_imagetype() 列出几个相关的内建变量。

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