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What are the potential reasons for a PHP script to receive the error message "chmod(): Operation not permitted"?

The error message "chmod(): Operation not permitted" typically occurs when the PHP script does not have the necessary permissions to change the file p...

What potential pitfalls should be considered when implementing automatic updates in PHP with Long Polling?

Potential pitfalls when implementing automatic updates in PHP with Long Polling include the risk of server overload due to a high volume of open conne...

Where can one find and access the PHP error log to troubleshoot issues related to executing SSH commands?

When executing SSH commands in PHP, it is important to check the PHP error log to troubleshoot any issues that may arise during the process. The PHP e...

What are the differences between generating a session variable as a string versus as an array in PHP?

When generating a session variable as a string in PHP, you can store a single value. However, when generating a session variable as an array, you can...

What are the advantages and disadvantages of using DATETIME vs. TIMESTAMP data types for date and time values in MySQL when importing CSV data with PHP?

When importing CSV data with PHP into MySQL, it's important to consider whether to use DATETIME or TIMESTAMP data types for date and time values. Ad...