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PDO small project practice

Chapter1 Understanding and Application of PDO Objects
1-1 PDO object knowledge
1-2 PDO object initialization
1-3 PDO object application
Chapter2 PDO security processing and transaction processing
2-1 Course Introduction
2-2 PDO exception handling
2-3 PDO preprocessing
2-4 PDO transaction processing
Chapter3 PDO project example (student information management system)
3-1 System introduction and construction
3-2 Add and view system functions
3-3 System function deletion and modification

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