When using the readfile_chunked function noted here with files larger than 10MB or so I am still having memory errors. You can modify this and add fpassthru instead of fread and while, but it sends all data from begin - it would be not fruitful if request is bytes from 100 to 200 from 100mb file. It can be slow for big files to read by fread, but this is a single way to read file in strict bounds.
Send file with HTTPRange support (partial download):
#TAGR MAKE TITLE MATCH FILE NAME CODE#
You can read comments in the code itself for more details and raise issues for the library, if you think something is incorrect there (especially since it's WIP at the moment of writing this), but so far I am able to get consistent behavior with it. That is why in my library I use a helper function ("speedLimit") to calculate whether selected speed limit will fit the available memory (while allowing some headroom). It does not mean that you can fully escape memory exhaustion, though: if you are reading too much at a time, you can still encounter it. At least, when I was testing "download" function for my library on 1.5G file with 256M memory limitation that was the case: "fread" I got peak memory usage of ~240M, while with "stream_copy_to_stream" - ~150M. Meanwhile "stream_copy_to_stream" seems to utilize the same amount of memory as "readfile". It does work, but you may encounter memory exhaustion using "fread".
#TAGR MAKE TITLE MATCH FILE NAME ARCHIVE#
Which gives the filename as 'foo.bar' and the extension as '.baz'.Getting Started Introduction A simple tutorial Language Reference Basic syntax Types Variables Constants Expressions Operators Control Structures Functions Classes and Objects Namespaces Enumerations Errors Exceptions Fibers Generators Attributes References Explained Predefined Variables Predefined Exceptions Predefined Interfaces and Classes Predefined Attributes Context options and parameters Supported Protocols and Wrappers Security Introduction General considerations Installed as CGI binary Installed as an Apache module Session Security Filesystem Security Database Security Error Reporting User Submitted Data Hiding PHP Keeping Current Features HTTP authentication with PHP Cookies Sessions Dealing with XForms Handling file uploads Using remote files Connection handling Persistent Database Connections Command line usage Garbage Collection DTrace Dynamic Tracing Function Reference Affecting PHP's Behaviour Audio Formats Manipulation Authentication Services Command Line Specific Extensions Compression and Archive Extensions Cryptography Extensions Database Extensions Date and Time Related Extensions File System Related Extensions Human Language and Character Encoding Support Image Processing and Generation Mail Related Extensions Mathematical Extensions Non-Text MIME Output Process Control Extensions Other Basic Extensions Other Services Search Engine Extensions Server Specific Extensions Session Extensions Text Processing Variable and Type Related Extensions Web Services Windows Only Extensions XML Manipulation GUI Extensions Keyboard Shortcuts ? This help j Next menu item k Previous menu item g p Previous man page g n Next man page G Scroll to bottom g g Scroll to top g h Goto homepage g s Goto searchįlobee.at. shared "readfile_chunked" function. If you're using ES6 you can even use destructing to grab the results in 1 line: doesn't need escaped inside, since everything (except ^) is a literal in a character set.Įnd the 2nd capture group ) and indicate that the whole group is optional ?, since it may not have an extension.Īnchor to the end of the string (again, to avoid partial matches) We specify it this way so that it doesn't match early on filenames like, incorrectly giving an extension with more than one dot in it of. chars to get the rest of the file extension *. Match characters not in the set by specifying this is an inverted character set ^. isn't interpreted as "match any character").ĭefine a character set. character (which we escape with \ so that. Start a 2nd capture group for the extension using (. , 0 or more times *, lazily ? (don't just grab them all if the later optional extension can match), and put them in the first capture group ( ). I know this is an old question, but here's another solution that can handle multiple dots in the name and also when there's no extension at all (or an extension of just '.'):Īnchor to the start of the string (to avoid partial matches)
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