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How to set the php session expiration time: first open the directory where the PHP configuration file is located and find the configuration file; then search for "maxlifetime"; finally modify the value of "session.gc_maxlifetime".
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Understanding about session expiration time in PHP:
Open the directory where the PHP configuration file is located and find the configuration file
Open the PHP configuration file and search for: maxlifetime
See: session.gc_maxlifetime=1440, which is the default validity time of session
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