Php open file read last line
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Php open file read last line
Well, you saw an example using a loop with fgets. The files I was dealing with were various lengths, so this worked for me. I need to delete the last line of the flat file before I append though. He asked for a way NOT to read the file into memory. Search for local events in your area. The speed comes from reading a big chunk of data instead of 1 byte at a time and counting lines. Suffice it to say that the string formatting is extremely flexible. Is there any optimization for this operation so that it run smooth and not harm the server or kill Apache? Picking your poison PHP has no shortage of effective ways for reading and parsing files. This should be quicker than reading the whole file till you get to the last line. This file can get really big sometimes and I need to read the last line from that file. But how does it work?
More people are reading the nixCraft. UPDATE: Thanks Syntax Error for pointing out about empty file. W3Schools is optimized for learning, testing, and training. More complex files might require you to jump back and forth to different parts of the file. Having a problem logging in? Edited by admin: added pre tags.
If so, just let the logging application always log the line to a file while truncating it i. While this works fine for a small file, an sizeable file is going to suck down memory and time. The file may be opened in one of the following modes: Modes Description r Open a file for read only. Yes, this is a workaround. Click to buy the. How do i do that? It tells PHP that the pointer to the file is no longer needed.
Php open file read last line
Use the seek method of seekableiterator to fetch the last line. Processing the return value of fopen is simpler and more accurate. Later edit: I DO NOT want to put the file in RAM because it might get huge.
There are working examples of how to read the last line of a file in the comments section there. Use the seek method of seekableiterator to fetch the last line.