Wednesday, June 11th, 2008
Over at DevNetwork forums somebody asked for a piece of code, that scans a directory containing thousands of files for a file containg specific string.
Here is the solution I came up with it:
< ?php
// list file extensions that you care about here
$extensions = array('php','inc');
foreach(new RecursiveIteratorIterator(new RecursiveDirectoryIterator('.')) as $Item)
{
...
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Tuesday, June 10th, 2008
Source data:
$triples = array();
$triples[] = array('VISA','EUR',13);
$triples[] = array('VISA','EUR',26);
$triples[] = array('VISA','EUR',39);
$triples[] = array('VISA','JPY',13);
$triples[] = array('PAYPAL','JPY',13);
Desired result
array(
array('VISA','EUR',78),
array('VISA','JPY',13),
array('PAYPAL','JPY',13)
)
e.g. group data by both payment method and currency.
My solution
$triples = array();
$triples[] = array('VISA','EUR',13);
$triples[] = array('VISA','EUR',26);
$triples[] = array('VISA','EUR',39);
$triples[] = array('VISA','JPY',13);
$triples[] = array('PAYPAL','JPY',13);
$result = array();
foreach($triples ...
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Wednesday, June 4th, 2008
// the following code returns all lines of source.txt that contain the string Aerosmith.
// Feel free to extend it for your own uses
class FileGrep extends FilterIterator
{
private $needle;
public function __construct($file, $needle) {
parent::__construct(new SplFileObject($file));
...
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Tuesday, June 3rd, 2008
< ?php
/*
Goal:
* Take a GPX (which is XML) file
* Extract interesting records from it
* Calculate the arithmetic average of latitudes and longitutes
...
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