key is just a variable name. for key in d: will simply loop over the keys in the dictionary, rather than the keys and values. To loop over both key and ... ... <看更多>
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Severity: Notice
Message: Trying to access array offset on value of type null
Filename: controllers/Pages.php
Line Number: 519
Backtrace:
File: /var/www/html/KOL/voice/application/controllers/Pages.php
Line: 519
Function: _error_handler
File: /var/www/html/KOL/voice/public/index.php
Line: 319
Function: require_once
Severity: Notice
Message: Trying to access array offset on value of type null
Filename: controllers/Pages.php
Line Number: 519
Backtrace:
File: /var/www/html/KOL/voice/application/controllers/Pages.php
Line: 519
Function: _error_handler
File: /var/www/html/KOL/voice/public/index.php
Line: 319
Function: require_once
Severity: Notice
Message: Trying to access array offset on value of type null
Filename: controllers/Pages.php
Line Number: 519
Backtrace:
File: /var/www/html/KOL/voice/application/controllers/Pages.php
Line: 519
Function: _error_handler
File: /var/www/html/KOL/voice/public/index.php
Line: 319
Function: require_once
Severity: Notice
Message: Trying to access array offset on value of type null
Filename: controllers/Pages.php
Line Number: 519
Backtrace:
File: /var/www/html/KOL/voice/application/controllers/Pages.php
Line: 519
Function: _error_handler
File: /var/www/html/KOL/voice/public/index.php
Line: 319
Function: require_once
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key is just a variable name. for key in d: will simply loop over the keys in the dictionary, rather than the keys and values. To loop over both key and ... ... <看更多>
... <看更多>
Your suspicions are correct, this is called using comprehension syntax for side-effects, and is normally bad practice. ... <看更多>
When running a for loop over a Python dict, the dict must never be changed. ... <看更多>