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I tried to use fopen, but I only managed to append content to end of file. Is it possible to overwrite all contents with new content in PHP? It should be obvious that this should only be used if you're making one write, if you are writing multiple times to the same file you should handle it yourself with.

On Windows not sure about Linux copy will overwrite an existing file but will not change the case of the existing filename. In other words if I have a file named "Myfile.txt" and I overwrite it using copy with a file named "MyFile.txt" it will overwrite it but the filename will remain "Myfile.txt". I have a php script that is executed quite often via ajax and its purpose is to record the time a user was last 'seen' on the site this is for the purpose of availability status in a chat. I decided to write this information to small files because it might be too heavy for the database. I am making an Android application that need to be able to push files onto a server. For this I'm using POST and fopen/fwrite but this method only appends to the file and using unlink before writi.

Therefore, I would say "No", it is not possible to overwrite a function with the intent that the original questioner had in mind. Original Answer. This is where you. 06/08/2017 · move_uploaded_file won't replace existing image. it's probably a permissions issue than won't allow you to delete or overwrite the file. share improve this answer. answered Mar 25 '12 at 9:07. GolezTrol GolezTrol. Ensure that you are not allowing to upload php files or any other nasty stuff, for that you can use php. how to replace a particular row using php. how to replace a particular line in a text file using php? Ask Question Asked 9 years, 5 months ago. Active 3 months ago. You have to overwrite the entire file. So, for the relatively small file, read file into array.

PHP Create File - fopen The fopen function is also used to create a file. Maybe a little confusing, but in PHP, a file is created using the same function used to open files. If you use fopen on a file that does not exist, it will create it, given that the file is opened for writing w or appending a. Parameters. handle. A file system pointer resource that is typically created using fopen. string. The string that is to be written. length. If the length argument is given, writing will stop after length bytes have been written or the end of string is reached, whichever comes first.

dopo aver fatto upload di un file ed il suo controllo se esiste già, vorrei che venisse fuori un messaggio con una possibilità di scelta se voler sovrascrivere il file già esistente oppure annullare. Esiste la possibilità di poter mandare un messaggio in PHP e l'utente può fare la sua scelta? Grazie!

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