Search results for: "fseek"

What is the potential issue with opening a text file using "a+" mode in PHP and how does it affect the comparison of existing data?

When opening a text file using "a+" mode in PHP, the file pointer is positioned at the end of the file for writing. This can cause issues when trying...

How can PHP be used to extract the last 100 lines from a large text file and write them to a new file, considering memory and performance constraints?

When dealing with large text files, it's important to consider memory and performance constraints. To extract the last 100 lines from a large text fil...

What potential issues should be considered when using the "r+" parameter in fopen to write to the beginning of a file in PHP?

When using the "r+" parameter in fopen to write to the beginning of a file in PHP, it's important to consider that this mode allows both reading and w...

What are some best practices for reading, deleting, and rewriting lines in a text file using PHP?

When reading, deleting, and rewriting lines in a text file using PHP, it is important to open the file in the appropriate mode (read/write), use funct...