Your problem is almost certainly due to the fact that fwrite operations on non-blocking socket streams can be interrupted by the arrival of new packets. Here php://stdout is not buffered stream, fwrite can buffer the output using php://output – Venkat Papana Nov 18 '13 at 10:26 nice answer. This problem is seen often, because PHP is lazy adding BOM, but it itself is expecting it on input. PHP Stream Introduction. PHP fwrite - 30 examples found. Warning: fopen() [function.fopen]: Filename cannot be empty Warning: fwrite(): supplied argument is not a valid stream resource Warning: fclose(): supplied argument is not a valid stream resource I don't know what to do. Streams are the way of generalizing file, network, data compression, and other operations which share a common set of functions and uses. XLS files may be read and written using PHP fopen, fread or fwrite, or any other PHP functions that can access to streams. But, it's not converting. PHP Coding Help ; fwrite() and fclose() not valid stream resource? Archived. fwrite() and fclose() not valid stream resource? By Unholy Prayer, August 28, 2006 in PHP Coding Help. PHP uses UTF-8 itself, so if you see text OK but file does not seem to be UTF-8, chances are the text is UTF-8 and adding BOM is all you need. GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together. – konohanaruto Dec 5 '19 at 6:50 add a comment | Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, PHP, Python, Bootstrap, Java and XML. Start new topic; Recommended Posts. You *must* check for a return value of 0 and either abort immediately or track a maximum number of retries. I'm a php noob. This means the example fwrite_stream() code from the docs, as well as all the "helper" functions posted by others in the comments are all broken. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. it helps me a lot. This class implements a stream handler interface to read and write Microsoft Excel spreadsheet files in the XLS format. – papo Jan 6 '19 at 12:32 As a result, you can't count on an fwrite to be atomic. These are the top rated real world PHP examples of fwrite extracted from open source projects. Dismiss Join GitHub today. Learn more fwrite() is not a valid stream resource This topic is now archived and is closed to further replies. You can rate examples to help us improve the quality of examples.