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Informations about the package slug-generator
This library provides methods to generate slugs for URLs, filenames or any other target that has a limited character set. It’s based on PHPs Transliterator class which uses the data of the CLDR to transform characters between different scripts (e.g. Cyrillic to Latin) or types (e.g. upper- to lower-case or from special characters to ASCII).
Usage
Installation
To install the library use Composer or download the source files from GitHub.
Why create another slug library, aren’t there enough already?
There are many code snippets and some good libraries out there that create slugs, but I didn’t find anything that met my requirements. Options are often very limited which makes it hard to customize for different use cases. Some libs carry large rulesets with them that try to convert characters to ASCII, no one uses Unicode’s CLDR which is the standard for transliteration rules and many other transforms. But most importantly no library was able to do the “correct” conversions, like “Ö-Äpfel” to “OE-Aepfel” for German or “İNATÇI” to “inatçı” for Turkish.
Options
All options can be set for the generator object itself new SlugGenerator($options)
or overwritten when calling generate($text, $options)
.
Options can by passed as array or as SlugOptions
object.
delimiter
, default "-"
The delimiter can be any string, it is used to separate words. It gets stripped from the beginning and the end of the slug.
validChars
, default "a-z0-9"
Valid characters that are allowed in the slug.
The range syntax is the same as in character classes of regular expressions.
For example abc
, a-z0-9äöüß
or \p{Ll}\-_
.
ignoreChars
, default "\p{Mn}\p{Lm}"
Characters that should be completely removed and not replaced with a delimiter.
It uses the same syntax as the validChars
option.
locale
, default ""
The locale that should be used for the Unicode transformations.
transforms
, default Upper, Lower, Latn, ASCII, Upper, Lower
Transform rules or rule sets that are used by the Transliterator
to convert invalid characters to valid ones.
Rules are for example Lower
or ASCII
,
rule sets look like a > b; c > d;
.
All versions of slug-generator with dependencies
ext-intl Version *
ext-mbstring Version *
ext-pcre Version *