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PHP: Text Spinner Class - Nested spinning supported.
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| <?php | |
| /** | |
| * Spintax - A helper class to process Spintax strings. | |
| * @name Spintax | |
| * @author Jason Davis - https://www.codedevelopr.com/ | |
| * Tutorial: https://www.codedevelopr.com/articles/php-spintax-class/ | |
| * Modified by Mark Larsen: | |
| * Added ability so that a fixed output can be returned. | |
| * Modified by David Strencsev: | |
| * Refactor and regular expression lazy optimization. | |
| */ | |
| class SpintaxSpinner | |
| { | |
| protected $seed; | |
| public function __construct($seed = null) | |
| { | |
| if (null !== $seed) { | |
| $this->seed = crc32($seed); | |
| } | |
| } | |
| public function execute($spinTemplate) | |
| { | |
| return preg_replace_callback( | |
| '/\{(((?>[^\{\}]+)|(?R))*?)\}/x', | |
| array($this, 'replace'), | |
| $spinTemplate | |
| ); | |
| } | |
| private function replace($text) | |
| { | |
| $text = $this->execute($text[1]); | |
| $parts = explode('|', $text); | |
| if ($this->seed) { | |
| // We want the same version returned each time | |
| mt_srand($this->seed); | |
| } | |
| return $parts[mt_rand(0, count($parts) - 1)]; | |
| } | |
| } | |
| /* EXAMPLE USAGE */ | |
| $spintax = new SpintaxSpinner(); | |
| $string = '{Hello|Howdy|Hola} to you, {Mr.|Mrs.|Ms.} {Smith|Williams|Davis}!'; | |
| echo $spintax->execute($string), PHP_EOL; | |
| /* NESTED SPINNING EXAMPLE */ | |
| echo $spintax->execute('{Hello|Howdy|Hola} to you, {Mr.|Mrs.|Ms.} {{Jason|Malina|Sara}|Williams|Davis}'), PHP_EOL; | |
| /* PREDICTABLE EXAMPLE */ | |
| $spintax = new SpintaxSpinner('someId'); | |
| echo $spintax->execute('{Hello|Howdy|Hola} to you, {Mr.|Mrs.|Ms.} {{Jason|Malina|Sara}|Williams|Davis}'), PHP_EOL; | |
| echo $spintax->execute('{Hello|Howdy|Hola} to you, {Mr.|Mrs.|Ms.} {{Jason|Malina|Sara}|Williams|Davis}'), PHP_EOL; |
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