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PHP file upload—a must-learn tutorial from entry to practical series

• Chapter1 File upload processing mechanism
• 1-1 Detailed explanation of multiple processing mechanisms for PHP website file uploads
• 1-2 Quickly locate PHP.ini configuration files for multiple PHP versions
• Chapter2 File upload front-end form
• 2-1 File upload front-end form construction
• 2-2 Detailed explanation of background upload status and temporary directory
• 2-3 Other php.ini configurations affect uploading instance operations
• 2-4 Front-end form limits PHP upload size
• Chapter3 Error code analysis
• 3-1 PHP super global data $_FILES analysis
• 3-2 PHP file upload error code analysis
• Chapter4 File upload form optimization
• 4-1 Single file upload processing operation
• 4-2 Form optimization for PHP multi-file upload
• Chapter5 PHP object-oriented upload processing
• 5-1 Analysis of object-oriented thinking in processing PHP uploads
• 5-2 PHP handles different types of uploaded data uniformly
• 5-3 PHP upload directory processing
• 5-4 Completed PHP object-oriented upload processing class development