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PHP: Text Spinner Class - Nested spinning supported.
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<?PHP | |
/** | |
* Spintax - A helper class to process Spintax strings. | |
*/ | |
class Spintax | |
{ | |
/** | |
* Set seed to make the spinner predictable. | |
*/ | |
public function seed(mixed $seed) | |
{ | |
mt_srand(crc32($seed)); | |
} | |
public function process(string $text) | |
{ | |
return preg_replace_callback( | |
'/\{(((?>[^\{\}]+)|(?R))*?)\}/x', | |
function ($match) { | |
$text = $this->process($match[1]); | |
$parts = explode('|', $text); | |
return $parts[mt_rand(0, count($parts) - 1)]; | |
}, | |
$text | |
); | |
} | |
/** | |
* If you want highest randomness, | |
* this is the method to use. | |
* Note: Seed has no effect. | |
* | |
* Last updated: 2023-10-26 | |
*/ | |
public function spin(string $text) | |
{ | |
$pattern = '/{([^{}]+)}/'; | |
while (preg_match($pattern, $text)) { | |
$text = preg_replace_callback($pattern, function ($matches) { | |
$options = explode('|', $matches[1]); | |
return $options[ random_int(0, count($options) - 1) ]; | |
}, $text); | |
} | |
return $text; | |
} | |
} | |
/* EXAMPLE USAGE */ | |
$spintax = new Spintax(); | |
$string = '{Hello|Howdy|Hola} to you, {Mr.|Mrs.|Ms.} {Smith|Williams|Davis}!'; | |
echo $spintax->process($string); | |
/* NESTED SPINNING EXAMPLE */ | |
echo $spintax->process('{Hello|Howdy|Hola} to you, {Mr.|Mrs.|Ms.} {{Jason|Malina|Sara}|Williams|Davis}'); |
Very interesting!
How to make the reverse?
Input: Hello to you, Mr. Smith!
Output: {Hello|Howdy|Hola} to you, {Mr.|Mrs.|Ms.} {Smith|Williams|Davis}!
how to output an array of all possible combinations?
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Hello!
Great job. It is helping me a lot!
I'm trying to get the parts of the spintax text separately, but I only get the ones between {}
For example, in this text:
{Hi|Hello}{ Mr.|} Irfaq Syed. {How are you?|How about the day?}
I get:
{Hi | Hello}
{Mr. |}
{How are you? | How about the day?}
But not the text in the middle, that is, I don't get:
Irfaq Syed.
There is any Regex to get all, the spintax groups and the plain text?
Thanks!