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PHP implements RSA encryption class example_PHP tutorial
Article Introduction：PHP implements RSA encryption class instance. Example of implementing RSA encryption class in PHP This article mainly introduces the implementation of RSA encryption class in PHP. The example analyzes the techniques of implementing encryption and decryption in PHP's custom RSA class. It is of great practical value. Friends who need it can
2016-07-13
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1123
Asking for the use of PHP encryption and decryption algorithm
Article Introduction：A recent project requirement is to use PHP to generate an encrypted string from some ordinary information through an encryption algorithm. The encrypted string can parse out the previous information through the decryption algorithm (reverse). Since I have never done it before, I would like to ask friends here if they have any ideas for ready-made encryption and decryption algorithms. The algorithm needs to be complex enough and not easy to be cracked. It would be better if there is a specific code.
2016-07-11
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1249
How to check if a function exists in PHP?
Article Introduction：In PHP, you should use the function_exists() function and pay attention to its scope of application and limitations. This method determines whether it exists by passing in the function name string. It is suitable for user-defined functions, extended functions and functions in namespace (requires a complete path); but it is not suitable for class methods or language structures. For inspection of class methods or object methods, the method_exists() function should be used to pass the class name or object instance respectively. In addition, it is necessary to avoid misuse of language structures such as echo, ensuring accurate spelling of function names, and preventing repeated definitions.
2025-07-07
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659
