Training, Open Source Computer Languages

Search for:
Print friendly page
Home Accessibility Courses Diary The Mouth Forum Resources Site Map About Us Contact
PHP fread - truncated data

Note that PHP's fread function returns the number of bytes you request as the second parameter ...OR the number of remaining bytes if it's less than the number you give ... or 8192 bytes, even if there's more than that available and you've requested more.

I got caught out by this one earlier today ... felt that it was useful (re)minder to post it up here.

If you need to read more that 8k into a variable:

while ($info = fread($fh,8192)) {
$fullstuff .= $info;
}
(written 2007-02-27, updated 2007-02-28)

 
Associated topics are indexed under
H109 - PHP - Input / Output
  [3424] Divide 10000 by 17. Do you get 588.235294117647, 588.24 or 588? - Ruby and PHP - (2011-09-08)
  [3159] Returning multiple values from a function call in various languages - a comparison - (2011-02-06)
  [3029] PHP data sources - other web servers, large data flows, and the client (browser) - (2010-11-04)
  [2964] An introduction to file handling in programs - buffering, standard in and out, and file handles - (2010-09-21)
  [1780] Server overloading - turns out to be feof in PHP - (2008-09-01)
  [1442] Reading a file multiple times - file pointers - (2007-11-23)
  [1113] File and URL reading in PHP - (2007-03-20)
  [1096] Sample script - FTP to get a file from within PHP - (2007-03-01)
  [997] Most recent file in a directory - PHP - (2006-12-18)
  [709] Handling huge data files in PHP - (2006-05-04)
  [653] Easy feed! - (2006-03-21)
  [616] printf - a flawed but useful function - (2006-02-22)
  [114] Relative or absolute milkman - (2004-11-10)


Back to
Wiltshire Train - can YOU come on 5th March?
 Previous and next
or
Horse's mouth home		 Forward to
Apache httpd , browser, MySQL and MySQL client downloads
Some other Articles
Three big events - TWSW, Business of the year and the police
Train and business balls all in the air!
Apache httpd , browser, MySQL and MySQL client downloads
PHP fread - truncated data
Wiltshire Train - can YOU come on 5th March?
Tcl training - often for a larger group
The Psyche is all wrong.
Too many instructions, too much detail
Playing old games
3603 posts, page by page
Link to page ... 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73 at 50 posts per page


This is a page archived from The Horse's Mouth at http://www.wellho.net/horse/ - the diary and writings of Graham Ellis. Every attempt was made to provide current information at the time the page was written, but things do move forward in our business - new software releases, price changes, new techniques. Please check back via our main site for current courses, prices, versions, etc - any mention of a price in "The Horse's Mouth" cannot be taken as an offer to supply at that price.

Link to Ezine home page (for reading).
Link to Blogging home page (to add comments).
You can Add a comment or ranking to this page
Public Training Courses
Running regularly at our UK training Centre.
[Schedule] - [About] - [Book]

Like this? ??

Related short articles
Easy session example in PHP - keeping each customers data apart
Separating program and artwork in PHP - easier maintainance, and better for the user
UK Mapping Data - and more to come - under government Open Data measures
Learning to program in PHP - Regular Expression and Associative Array examples
December courses - PHP, Python, Perl - and a weekend Lua course
Regular Expression modifiers in PHP - summary table
PHP - moving from ereg to preg for regular expressions
Databases - when to treat the rules as guidelines
On this day ... one PHP script with three uses
MySQL, MySQLi, PDO or something else - how best to talk to databases from PHP
Your PHP website - how to factor and refactor to reduce growing pains
Data that we use during our training courses, and other training resources
Handling binary data in Perl is easy!
Tables as Objects in Lua - a gentle introduction to data driven programming
Sorting data the way YOU want it sorted
How to interact with a Perl program while it is processing data
Extracting data from a string / line from file - Tcl
Do I need to initialise variables - programming in C, C++, Perl, PHP, Python, Ruby or Java.
SQL - Data v Metadata, and the various stages of data selection
Files or Databases? MySQL, SQLite, or Oracle?
Computer Graphics in PHP - World (incoming data) to Pixel (screen) conversion
Catchable fatal error in PHP ... How to catch, and alternative solutions such as JSON
Open Source (Public) courses - PHP, Tcl, SQL, Python, C and C++ in Melksham, Wiltshire, UK
Tcl - Some example of HOW TO in handling data files and formats
Extra courses - Advanced PHP, MySQL and Lua
Splitting data reading code from data processing code - Ruby
Perl, Python, PHP, Lua, Linux, and more - and business hotel too. Menu for 2011
Perl - database access - DBD, DBI and DBIx modules
Setting your user_agent in PHP - telling back servers who you are
Databases - why data is split into separate tables, and how to join them
Sending out an email containing HTML from within a PHP page
How to display information from a database within a web page
Server logs - drawing a graph of gathered data
Learning to Program ... in PHP. Course examples.
Handling (expanding) tabs in PHP
Setting up a matrix of data (2D array) for processing in your program
Increment operators for counting - Perl, PHP, C and others
Copying - duplicating data, or just adding a name? Perl and Python compared
Loading and saving data - Python / numpy
Getting the OO design write - with PHP a example
Upload Image, Store in database, redisplay in browser. PHP and MySQL
LAMP - Linux, Apache, MySQL, PHP - install, configure, administer
Just pass a pointer - do not duplicate the data
Sharing our programs - easy. Sharing our data - harder.
Binary data handling with unpack in Perl
PHP - Object Oriented Design in use
Dynamically watching your web site via a PHP wrapper
Connecting Python to sqlite and MySQL databases
What is all this SESSION stuff about? (PHP)
Improving your function calls (APIs) - General and PHP
Uploading an image, document or pdf via a browser (php)
Exception handling in PHP
Adding extensions to PHP Open Source applications - callbacks
Static class members in PHP - a documented example
How to build a test harness into your PHP
Improve your PHP on a weekend away
Compile but do not run PHP - syntax check only
Object Oriented Programming in PHP
A PHP example that lets your users edit content without HTML knowledge
Shipping a test harness with your class in PHP
How to show a large result set page by page in PHP
Static variables and ampersands in PHP
Curly braces within double quoted strings in PHP
Your PHP code does not work? Here is where to start looking.
Reducing image size on digital photos - PHP
Moving the product forward - ours, and MySQL, Perl, PHP and Python too
Scraping content for your own page via PHP
When should I use Java, Perl, PHP, or Python?
A variable number of arguments in a PHP function
MySQL stored procedures / their use on the web from PHP
Abstract classes, Interfaces, PHP and Java
Controlling, supressing, enabling PHP error messages
Using print_r in PHP to explore mysql database requests
Not just a PHP program - a good web application
Are you wanting to learn PHP?
Checking the database connection manually
Making variables persistant, pretending a database is a variable and other Perl tricks
Designing your data structures for a robust Perl application
Using a cache for efficiency. Python and PHP examples
Geocoding - converting address to latitude / Longitude with PHP via Google
© WELL HOUSE CONSULTANTS LTD., 2012: Well House Manor • 48 Spa Road • Melksham, Wiltshire • United Kingdom • SN12 7NY
PH: 01144 1225 708225 • FAX: 01144 1225 899360 • EMAIL: info@wellho.net • WEB: http://www.wellho.net • SKYPE: wellho

PAGE: http://www.wellho.net/mouth/1094_PHP ... -data.html • PAGE BUILT: Fri Feb 3 14:16:04 2012 • BUILD SYSTEM: wizard