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<?php |
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/** |
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* Includes/Generate.php. |
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* |
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* @author Adam "Saibamen" Stachowicz <[email protected]> |
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* @license MIT |
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* |
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* @link https://github.com/Saibamen/Generate-Sort-Numbers |
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*/ |
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/** |
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* Functions for 'Generate' script. |
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* |
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* @author Adam "Saibamen" Stachowicz <[email protected]> |
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*/ |
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namespace Includes; |
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require_once 'Text.php'; |
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/** |
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* Functions for 'Generate' script. |
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*/ |
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class Generate |
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{ |
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/** |
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* Generate string with randomized numbers. |
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* |
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* @param int|float $min Minimum allowed number to generate |
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* @param int|float $max Maximum allowed number to generate |
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* @param int|float $decimalPlaces Number of decimal places |
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* @param int $maxFileSize Maximum file size in bytes |
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* |
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* @return string Generated string without trailing spaces |
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*/ |
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public static function generateRandomNumbers($min, $max, $decimalPlaces, $maxFileSize) |
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{ |
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$range = $max - $min; |
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$outputString = ''; |
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$minMaxNumberSize = self::getMinMaxNumberSize($min, $max, $decimalPlaces); |
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if ($minMaxNumberSize['max'] > $maxFileSize) { |
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die('Error: Cannot generate any number due to too low file size.'); |
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} |
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// Maximum iteration without spaces |
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$maximumIteration = (int) ($maxFileSize / $minMaxNumberSize['max']); |
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Text::debug('First maximum iteration: '.$maximumIteration); |
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$findingStart = microtime(true); |
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Text::message('Finding maximum iteration for loop...'); |
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for ($i = 0; ; $i++) { |
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$tempMaxIteration = $maximumIteration - $i; |
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$maximumBytes = ($minMaxNumberSize['max'] * $tempMaxIteration) + $tempMaxIteration - 1; |
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if ($maxFileSize >= $maximumBytes) { |
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$maximumIteration = $tempMaxIteration; |
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Text::debug('Found right max iteration for loop'); |
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break; |
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} |
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} |
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Text::printTimeDuration($findingStart); |
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Text::message('GENERATING...'); |
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Text::debug('Min: '.$min.' Max: '.$max.' Decimal places: '.$decimalPlaces.' Size: '.$maxFileSize."\nMaximum iteration: ".$maximumIteration."\n"); |
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$generateStart = microtime(true); |
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for ($i = 1; $i <= $maximumIteration; $i++) { |
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// Print progress and move cursor back to position 0 |
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echo 'Progress: '.$i.'/'.$maximumIteration."\r"; |
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// Random number |
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$number = $min + $range * (mt_rand() / mt_getrandmax()); |
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// Format with trailing zeros ie. 8.00 |
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$number = number_format((float) $number, (int) $decimalPlaces, '.', ''); |
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$outputString .= $number.' '; |
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} |
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Text::printTimeDuration($generateStart); |
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Text::debug('Output string has '.strlen(trim($outputString)).' bytes.'); |
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// Remove last space |
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return trim($outputString); |
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} |
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/** |
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* Switch min and max if min > max. |
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* |
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* @param int|float $min Minimum allowed number to generate |
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* @param int|float $max Maximum allowed number to generate |
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* @param int|float $decimalPlaces Number of decimal places |
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* |
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* @return array |
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*/ |
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public static function getMinMaxNumberSize($min, $max, $decimalPlaces) |
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{ |
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$additionalBytes = NULL; |
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if ((int) $decimalPlaces > 0) { |
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// + 1 for decimal point |
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$additionalBytes = (int) $decimalPlaces + 1; |
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} |
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$minimumNumberSize = min(strlen((int) $min), strlen((int) $max)) + $additionalBytes; |
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$maximumNumberSize = max(strlen((int) $min), strlen((int) $max)) + $additionalBytes; |
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Text::debug('Minimum number size: '.$minimumNumberSize); |
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Text::debug('Maximum number size: '.$maximumNumberSize); |
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return array('min' => $minimumNumberSize, 'max' => $maximumNumberSize); |
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} |
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/** |
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* Switch min and max if min > max. |
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* |
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* @param float $min Minimum |
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* @param float $max Maximum |
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* |
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* @return array |
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*/ |
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public static function checkSwitchMinMax($min, $max) |
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{ |
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if ($min > $max) { |
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Text::debug('!! Switching min and max !!'); |
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$tempMin = $min; |
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$min = $max; |
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$max = $tempMin; |
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Text::debug('Min: '.$min); |
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Text::debug('Max: '.$max); |
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} |
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return array('min' => $min, 'max' => $max); |
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} |
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} |
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Saibamen /
Generate-Sort-Numbers
