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For 2021 - online Python 3 training - see ((here)).

Our plans were to retire in summer 2020 and see the world, but Coronavirus has lead us into a lot of lockdown programming in Python 3 and PHP 7.
We can now offer tailored online training - small groups, real tutors - works really well for groups of 4 to 14 delegates. Anywhere in the world; course language English.

Please ask about private 'maintenance' training for Python 2, Tcl, Perl, PHP, Lua, etc.
File and URL reading in PHP

In PHP, we say "there's a function to do that" as the answer to almost any question is going to be in the form of a function name, or a list of functions, to call. And PHP has more functions than almost any other language, making it more flexible than most.

Take file handling ... where in so many other languages you have just got open, read and close type constructs whereas in PHP you have those same constructs plus a whole lot of others

file lets you read the whole contents of a file into an array
fgetcsv lets you read a file line by line and break in into an array of tokens
file_get_contents lets you read the whole of a file into a string.

Impressive range already? Then remember that you can also give an URL as the first parameter when you open a file ... and that way the same set of functions allow you to read from another web page ....
(written 2007-03-20, updated 2007-03-21)

 
Associated topics are indexed as below, or enter http://melksh.am/nnnn for individual articles
H109 - PHP - Input / Output
  [114] Relative or absolute milkman - (2004-11-10)
  [616] printf - a flawed but useful function - (2006-02-22)
  [653] Easy feed! - (2006-03-21)
  [709] Handling huge data files in PHP - (2006-05-04)
  [997] Most recent file in a directory - PHP - (2006-12-18)
  [1094] PHP fread - truncated data - (2007-02-27)
  [1096] Sample script - FTP to get a file from within PHP - (2007-03-01)
  [1442] Reading a file multiple times - file pointers - (2007-11-23)
  [1780] Server overloading - turns out to be feof in PHP - (2008-09-01)
  [2964] An introduction to file handling in programs - buffering, standard in and out, and file handles - (2010-09-21)
  [3029] PHP data sources - other web servers, large data flows, and the client (browser) - (2010-11-04)
  [3159] Returning multiple values from a function call in various languages - a comparison - (2011-02-06)
  [3424] Divide 10000 by 17. Do you get 588.235294117647, 588.24 or 588? - Ruby and PHP - (2011-09-08)
  [4483] Moving from mysql to mysqli - simple worked example - (2015-05-03)


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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.

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