'php' Category

• Easy swapping PHP variables

  February 18, 2022

  Using list() function to swap variables values without adding more variables. $url = 'blog:5'; list($type, $id) = explode(':', $url); // in case that the url is 5:block if (!is_numeric($id)) { list($type, $id) = [$id, $type]; }

  posted in php by Ivan Gospodinow

• PHP multidimensional array to form hidden inputs

  March 22, 2019

  /** * Corvert array data to hidden inputs * to pass as form data * * Example: [data => [sub1 => 1, sub2 => 2]] * * * * @author Ivan Gospodinow * @see http://ivangospodinow.com/?p=455 * @param array $array * @param [array | string] $exclude * @return string */ function arrayToHiddenInput(array $array, $exclude = null) […]

  posted in php by Ivan Gospodinow

• Dynamic sleep for infinite loops based on cpu

  May 11, 2017

  Based on this function http://ivangospodinow.com/php-how-to-calculate-system-processors-load-in-percent/ we are getting current cpu load. usleep(1000000 * systemLoadInPercent() / 100); Result: 54.3% cpu load, sleep 0.543 sec  

  posted in php by Ivan Gospodinow

• Why using getArrayCopy and exhangeArray ?

  January 7, 2017

  Because that is what php are using in ArrayObject

  posted in php by Ivan Gospodinow

• Monty Hall Problem in PHP

  November 23, 2016

  define('HAS_PRICE', true); define('HAS_NO_PRICE', false); $tries = 0; $won = 0; $wonFirst = 0; $i = 0; $pick = 0; /** * Bottom line, you play against being wrong the first time */ while (++$i

  posted in php by Ivan Gospodinow

• PHP Games – Solution to The Impossible Bet

  April 8, 2016

  /** * 100 people put a number in box. * every one must find his box within 50 tries */ $allTries = 100000; $usedTries = $allTries; $players = 50; $tries = 25; $settings = []; $people = []; for ($i = 0; $i < $players; $i++) { $settings[$i] = $i; $people[$i] = $i; } $mostPeopleWon […]

  posted in games, php by Ivan Gospodinow

• Set php error_log dynamicaly in .htaccess

  September 20, 2015

  1. Open your .htaccess file and add this lines to be bottom. 2. Create your php.error.log file. php_value log_errors 1 php_value error_log ./php.error.log If your file is still empty, add in your php error_reporting(E_ALL); Simple as that

  posted in php by Ivan Gospodinow

• Creating issues in Jira for multiple users with Jira API

  September 12, 2015

  1. Creating Jira issue $jiraUsername = 'Jira login username'; $jiraPassword = 'Jira login password'; $jiraHost = 'http://my-jira-host.com/'; $data = array( 'fields' => array( 'project' => array('key' => 'PR'/* Project Key*/), 'summary'=> 'Issue title', 'description' => 'Some text here, no html tags', 'labels' => array('API', 'IvanGospodinow'/* Put the username so you know which one added it […]

  posted in php by Ivan Gospodinow

• Copy big MySQL database with php in 5 steps

  July 17, 2015

  1. Dump structure of the big database. 2. Open the sql file and cut the constraints. 3.  Import the structure to another database. 4. Run this code: /** * Sync from live database */ ini_set('memory_limit','512M'); $limit = 100000; $time = time(); $sleep = 1; $sleepEvery = 60; $link = new mysqli( “__HOST__”, “__USER__”, “__PASSWORD__”, “__DATABASE__” […]

  posted in how to ?, php by Ivan Gospodinow

• Warning: Division by zero – easy way to get arround?

  September 26, 2014

  $sum = [0, 0, 0, 0]; echo count($sum) / array_sum($sum); // Warning: Division by zero $arraySum = 0.00001 + array_sum($sum); $number = count($sum) / $arraySum; echo round($number, 2); // Result is 0; Just add some small number to the one you are not sure that it will be bigger than zero. Easy as that.

  posted in php by Ivan Gospodinow