How Can I Detect the Language of a String in PHP?

Detect Language from String in PHP

Determining the language of a particular text string can be a valuable task for natural language processing applications. In PHP, you have a couple of options to detect the language of a string.

One approach is to utilize the Text_LanguageDetect PEAR package. It provides a straightforward method to identify languages. The package boasts a database of 52 languages, but it lacks support for East Asian languages.

To implement Text_LanguageDetect:

require_once 'Text/LanguageDetect.php';
$l = new Text_LanguageDetect();
$result = $l->detect($text, 4);

If you encounter any issues during detection, you can handle them by checking for errors (if (PEAR::isError($result))). Otherwise, the results will be available in the $result variable, showing the probability of each detected language.

For instance, consider a string:

$text = "This is an example text.";

After using Text_LanguageDetect, you might obtain the following results:

Array
(
    [english] => 0.8
    [german] => 0.2
)

This output indicates that the string is most likely in English with an 80% probability, while German is less probable at 20%.

Using Text_LanguageDetect, you have a simple way to detect languages in PHP with acceptable accuracy. However, if you need more comprehensive language detection, including support for East Asian languages, consider exploring alternative packages or online services.

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