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Strings

A purely static String Helper to handle more advanced utf8 string manipulations

Installation

Strings can be installed using composer:

Strings is also included in OpinHelper which packages several bellow "Swiss Army Knife" level Helpers covering some of the most annoying aspects of php programing, such as UTF8 string manipulation, high precision Mathematics or properly locking a file

Should you need to work with php bellow 7.1, you can still use OpinHelper 0.x

Prerequisites

As it requires Utf8, Strings requires mb_string, ext-intl is auto detected and used when available for UTF-8 Normalization

In practice

Strings implement some basic text manipulation function that can be pretty useful IRL

• filter(string $string):string

  Drops Zero Width white chars, normalizes EOL and Normalize UTF8 if ext-intl is available

• singleWsIze(string $string, bool $normalize = false, bool $includeTabs = true):string

  Replace repeated white-spaces to a single one, preserve original white-spaces unless normalized (every white-spaces to ' '), with or without tabs (\t)

• singleLineIze(string $string):string

  Make string fit in one line by replacing EOLs and white-spaces to normalized single white-spaces

• dropZwWs(string $string):string

  Remove Zero Width white-spaces

• normalizeWs(string $string, bool $includeTabs = true, int $maxConsecutive = null):string

  Normalize white-spaces to a single by default, include tabs by default

• normalizeEol($string, $maxConsecutive = null, $eol = self::EOL):string

  Normalize EOLs to a single LF by default

• normalizeText(string $text):string

  Return trim'd and filter'd $text

• normalizeTitle(string $title):string

  Return singleLineIze'd, normalizeWs'd, normalizeText'd and ucfirst'd $title (" the best ever \t\r\n article" -> "The best ever article")

• normalizeName(string $name):string

  Return ucword'd and normalizeTitle'd $name ("john \n\t doe " -> "John Doe")

• escape(string $string, int $flag = ENT_COMPAT, bool $hardEscape = true):string

  htmlspecialchars() wrapper with UTF8 set as encoding

• softEscape(string $string, int $flag = ENT_COMPAT):string

  Shortcut for escape(string $string, $flag, true)

• unEscape(string $string, int $quoteStyle = ENT_COMPAT):string

  htmlspecialchars_decode() wrapper

• convert(string $string, string $from = null, string $to = self::ENCODING):string

  Convert encoding to UTF8 by default. Basic $from encoding detection using Strings::detectEncoding()

• detectEncoding(string $string):string|null

  Detect encoding by checking Utf8::isUf8(), then trying with BOMs and ultimately fall back to mb_detect_encoding() with limited charsets first, then more internally in mb_convert_encoding()

• secureCompare(string $test, string $reference):bool

  Perform a Timing Attack safe string comparison (Truly constant operations comparison)

• contentHash(string $content):string

  Return a sha256 hash of the $content prefixed with $content length. Indented to quickly and reliably detect $content updates.

Requirements

Strings is tested against php 7.2, 7.3, 7.4 and 8.0

Contributing

Contributions are welcome, do not hesitate to open issues and submit pull requests.

License

Strings is open-sourced software licensed under the MIT license