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HomePHP LibrariesPicture libraryPHP adds watermark function class to pictures (applicable to pngjpggif format)
PHP adds watermark function class to pictures (applicable to pngjpggif format)Introducing a php function class to add watermarks to pictures (applicable to pngjpggif format),
1: Top left, 2: Top right, 3: Center, 4: Bottom left, 5: Bottom right

Transparency -- 0: completely transparent, 100: completely opaque

Success -- New image address after watermarking

Failure--1: The original file does not exist, -2: The watermark image does not exist, -3: The creation of the original file image object failed -4: The creation of the watermark file image object failed -5: Add Failed to save new image after watermark
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