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On gists
Magic Method: __invoke
•
PHP
wakeup.php #
<?php
class User {
protected $name;
protected $timeline = array();
public function __construct($name)
{
$this->name = $name;
}
public function addTweet(Tweet $tweet)
{
$this->timeline[] = $tweet;
}
}
class Tweet {
protected $id;
protected $text;
protected $read;
public function __construct($id, $text)
{
$this->id = $id;
$this->text = $text;
$this->read = false;
}
public function __invoke($user)
{
$user->addTweet($this);
return $user;
}
}
$users = array(new User('Ev'), new User('Jack'), new User('Biz'));
$tweet = new Tweet(123, 'Hello world');
$users = array_map($tweet, $users);
var_dump($users);
On gists
PHP
PHP-PHPDOM
PHP DOM - saveHtml (solution without entities and html,body tags)
dom.php #
<?php
$string = '<div>ěščřžýáíé</div><p>testik</p> <p>testik2</p>';
$dom = new \DOMDocument('1.0', 'UTF-8');
$dom->loadHTML('<body>'.mb_convert_encoding($string, 'HTML-ENTITIES', 'UTF-8').'</body>');
// změny na $dom
echo substr($dom->saveHTML($dom->documentElement), 12, -14);
On gists
PHP
CLI
PHP CLI colors & getopts commands
cli.php #
<?php
// https://www.supercoders.in/2019/07/php-command-line-php-parsing-program_16.html
// https://misc.flogisoft.com/bash/tip_colors_and_formatting
// https://joshtronic.com/2013/09/02/how-to-use-colors-in-command-line-output/
$longopts = array(
"required:", // Required value
"optional::", // Optional value
"option", // No value
"opt", // No value
);
$options = getopt("", $longopts);
echo "\e[0;34;41mMerry Christmas!\e[0m\n";
echo "kunda";
echo "\033[31m some colored text \033[0m some white text \n";
echo "Normal \e[5mBlink \n";
echo "Normal \e[1mBold \n";
echo "Default \e[33mYellow \n";
On gists
PHP
Microtime - rychlost měření php kódu
mereni.php #
<?php
function starttime() {
$r = explode( ' ', microtime() );
$r = $r[1] + $r[0];
return $r;
}
function endtime($starttime) {
$r = explode( ' ', microtime() );
$r = $r[1] + $r[0];
$r = round($r - $starttime,4);
return '<strong>Execution Time</strong>: '.$r.' seconds<br />';
}
$start = starttime();
$list = [1,2,3,4,5];
for ($i=0 ; $i< 1e5; $i++) {
if (count($list))
{
}
}
echo endtime($start);
$start = starttime();
$list = [1,2,3,4,5];
for ($i=0 ; $i< 1e6; $i++) {
if (!isset($x))
{
$x = [];
}
}
echo endtime($start);
On gists
PHP
Distance between 2 points
distance.php #
<?php
echo get_distance(50.0598058, 14.3255396, 51.0769658, 13.6325016, 'Km');
function get_distance($latitude1, $longitude1, $latitude2, $longitude2, $unit = 'Mi') {
$theta = $longitude1 - $longitude2;
$distance = (sin(deg2rad($latitude1)) * sin(deg2rad($latitude2))) +
(cos(deg2rad($latitude1)) * cos(deg2rad($latitude2)) *
cos(deg2rad($theta)));
$distance = acos($distance);
$distance = rad2deg($distance);
$distance = $distance * 60 * 1.1515;
switch($unit) {
case 'Mi':
break;
case 'Km' :
$distance = $distance * 1.609344;
}
return (round($distance,2));
}
On gists
PHP
Remove accents
remove.php #
<?php
function removeAccents($str)
{
static $map = [
// single letters
'à' => 'a',
'á' => 'a',
'â' => 'a',
'ã' => 'a',
'ä' => 'a',
'ą' => 'a',
'å' => 'a',
'ā' => 'a',
'ă' => 'a',
'ǎ' => 'a',
'ǻ' => 'a',
'À' => 'A',
'Á' => 'A',
'Â' => 'A',
'Ã' => 'A',
'Ä' => 'A',
'Ą' => 'A',
'Å' => 'A',
'Ā' => 'A',
'Ă' => 'A',
'Ǎ' => 'A',
'Ǻ' => 'A',
'ç' => 'c',
'ć' => 'c',
'ĉ' => 'c',
'ċ' => 'c',
'č' => 'c',
'Ç' => 'C',
'Ć' => 'C',
'Ĉ' => 'C',
'Ċ' => 'C',
'Č' => 'C',
'ď' => 'd',
'đ' => 'd',
'Ð' => 'D',
'Ď' => 'D',
'Đ' => 'D',
'è' => 'e',
'é' => 'e',
'ê' => 'e',
'ë' => 'e',
'ę' => 'e',
'ē' => 'e',
'ĕ' => 'e',
'ė' => 'e',
'ě' => 'e',
'È' => 'E',
'É' => 'E',
'Ê' => 'E',
'Ë' => 'E',
'Ę' => 'E',
'Ē' => 'E',
'Ĕ' => 'E',
'Ė' => 'E',
'Ě' => 'E',
'ƒ' => 'f',
'ĝ' => 'g',
'ğ' => 'g',
'ġ' => 'g',
'ģ' => 'g',
'Ĝ' => 'G',
'Ğ' => 'G',
'Ġ' => 'G',
'Ģ' => 'G',
'ĥ' => 'h',
'ħ' => 'h',
'Ĥ' => 'H',
'Ħ' => 'H',
'ì' => 'i',
'í' => 'i',
'î' => 'i',
'ï' => 'i',
'ĩ' => 'i',
'ī' => 'i',
'ĭ' => 'i',
'į' => 'i',
'ſ' => 'i',
'ǐ' => 'i',
'Ì' => 'I',
'Í' => 'I',
'Î' => 'I',
'Ï' => 'I',
'Ĩ' => 'I',
'Ī' => 'I',
'Ĭ' => 'I',
'Į' => 'I',
'İ' => 'I',
'Ǐ' => 'I',
'ĵ' => 'j',
'Ĵ' => 'J',
'ķ' => 'k',
'Ķ' => 'K',
'ł' => 'l',
'ĺ' => 'l',
'ļ' => 'l',
'ľ' => 'l',
'ŀ' => 'l',
'Ł' => 'L',
'Ĺ' => 'L',
'Ļ' => 'L',
'Ľ' => 'L',
'Ŀ' => 'L',
'ñ' => 'n',
'ń' => 'n',
'ņ' => 'n',
'ň' => 'n',
'ʼn' => 'n',
'Ñ' => 'N',
'Ń' => 'N',
'Ņ' => 'N',
'Ň' => 'N',
'ò' => 'o',
'ó' => 'o',
'ô' => 'o',
'õ' => 'o',
'ö' => 'o',
'ð' => 'o',
'ø' => 'o',
'ō' => 'o',
'ŏ' => 'o',
'ő' => 'o',
'ơ' => 'o',
'ǒ' => 'o',
'ǿ' => 'o',
'Ò' => 'O',
'Ó' => 'O',
'Ô' => 'O',
'Õ' => 'O',
'Ö' => 'O',
'Ø' => 'O',
'Ō' => 'O',
'Ŏ' => 'O',
'Ő' => 'O',
'Ơ' => 'O',
'Ǒ' => 'O',
'Ǿ' => 'O',
'ŕ' => 'r',
'ŗ' => 'r',
'ř' => 'r',
'Ŕ' => 'R',
'Ŗ' => 'R',
'Ř' => 'R',
'ś' => 's',
'š' => 's',
'ŝ' => 's',
'ş' => 's',
'Ś' => 'S',
'Š' => 'S',
'Ŝ' => 'S',
'Ş' => 'S',
'ţ' => 't',
'ť' => 't',
'ŧ' => 't',
'Ţ' => 'T',
'Ť' => 'T',
'Ŧ' => 'T',
'ù' => 'u',
'ú' => 'u',
'û' => 'u',
'ü' => 'u',
'ũ' => 'u',
'ū' => 'u',
'ŭ' => 'u',
'ů' => 'u',
'ű' => 'u',
'ų' => 'u',
'ư' => 'u',
'ǔ' => 'u',
'ǖ' => 'u',
'ǘ' => 'u',
'ǚ' => 'u',
'ǜ' => 'u',
'Ù' => 'U',
'Ú' => 'U',
'Û' => 'U',
'Ü' => 'U',
'Ũ' => 'U',
'Ū' => 'U',
'Ŭ' => 'U',
'Ů' => 'U',
'Ű' => 'U',
'Ų' => 'U',
'Ư' => 'U',
'Ǔ' => 'U',
'Ǖ' => 'U',
'Ǘ' => 'U',
'Ǚ' => 'U',
'Ǜ' => 'U',
'ŵ' => 'w',
'Ŵ' => 'W',
'ý' => 'y',
'ÿ' => 'y',
'ŷ' => 'y',
'Ý' => 'Y',
'Ÿ' => 'Y',
'Ŷ' => 'Y',
'ż' => 'z',
'ź' => 'z',
'ž' => 'z',
'Ż' => 'Z',
'Ź' => 'Z',
'Ž' => 'Z',
// accentuated ligatures
'Ǽ' => 'A',
'ǽ' => 'a',
];
return strtr($str, $map);
}
On gists
Iteration and Recursive Iteration Examples Code
•
PHP
iteration-and-recursive-iteratio #
<?php
/*
* Iteration and Recursive Iteration Examples Code
*
* @link http://stackoverflow.com/questions/12077177/how-does-recursiveiteratoriterator-works-in-php
* @author hakre <http://hakre.wordpress.com>
*/
### To have these examples to work, a directory with subdirectories is needed,
### I named mine "tree":
$path = 'tree';
/**
* Example 1: DirectoryIterator
*/
$dir = new DirectoryIterator($path);
echo "[$path]\n";
foreach ($dir as $file) {
echo " ├ $file\n";
}
/**
* Example 2: IteratorIterator
*/
$files = new IteratorIterator($dir);
echo "[$path]\n";
foreach ($files as $file) {
echo " ├ $file\n";
}
/**
* Example 3: RecursiveDirectoryIterator
*/
$dir = new RecursiveDirectoryIterator($path);
echo "[$path]\n";
foreach ($dir as $file) {
echo " ├ $file\n";
}
/**
* Example 4: RecursiveIteratorIterator
*/
$files = new RecursiveIteratorIterator($dir);
echo "[$path]\n";
foreach ($files as $file) {
echo " ├ $file\n";
}
/**
* Example 5: Meta-Information
*/
echo "[$path]\n";
foreach ($files as $file) {
$indent = str_repeat(' ', $files->getDepth());
echo $indent, " ├ $file\n";
}
/**
* Example 6: Recursion Mode
*/
$dir = new RecursiveDirectoryIterator($path, RecursiveDirectoryIterator::SKIP_DOTS);
$files = new RecursiveIteratorIterator($dir, RecursiveIteratorIterator::SELF_FIRST);
echo "[$path]\n";
foreach ($files as $file) {
$indent = str_repeat(' ', $files->getDepth());
echo $indent, " ├ $file\n";
}
/**
* Appendix: Nicely Formatted Directory Listings (as used in the answer)
*/
$unicodeTreePrefix = function(RecursiveTreeIterator $tree)
{
$prefixParts = [
RecursiveTreeIterator::PREFIX_LEFT => ' ',
RecursiveTreeIterator::PREFIX_MID_HAS_NEXT => '│ ',
RecursiveTreeIterator::PREFIX_END_HAS_NEXT => '├ ',
RecursiveTreeIterator::PREFIX_END_LAST => '└ '
];
foreach ($prefixParts as $part => $string) {
$tree->setPrefixPart($part, $string);
}
};
$dir = new RecursiveDirectoryIterator($path, RecursiveDirectoryIterator::KEY_AS_FILENAME | RecursiveDirectoryIterator::SKIP_DOTS);
$tree = new RecursiveTreeIterator($dir);
$unicodeTreePrefix($tree);
### non-recursive and recursive listing
foreach ([0, -1] as $level) {
$tree->setMaxDepth($level);
echo "[$path]\n";
foreach ($tree as $filename => $line) {
echo $tree->getPrefix(), $filename, "\n";
}
}
/**
* Appendix: Do It Yourself: Make the `RecursiveTreeIterator` Work Line by Line.
*/
$dir = new RecursiveDirectoryIterator($path, RecursiveDirectoryIterator::SKIP_DOTS);
$lines = new RecursiveTreeIterator($dir);
$unicodeTreePrefix($lines);
echo "[$path]\n", implode("\n", iterator_to_array($lines));
echo "
/// Solution Suggestion ///
";
@include('recursive-directory-iterator-solution.php');
$lines = new RecursiveTreeIterator(
new DiyRecursiveDecorator($dir)
);
$unicodeTreePrefix($lines);
echo "[$path]\n", implode("\n", iterator_to_array($lines));