Str

Change format of a given date, optionally according to locale settings.

In case a date variable is set in a txt file, its format can be different to a timestamp (mtime) of a file or page. To be independent on the given format without explicitly specifying it, strtotime() is used generate a proper input date. To use DateTime::createFromFormat() instead would require a third parameter (the original format) and would therefore make things more complicated than needed. The format can use either the date() or ICU syntax. In case a locale is defined, the ICU syntax is used.

Set a default value for $str in case $str is empty.

Escapes a string to be used safely in a JSON string.

Find the URL of the first image within rendered HTML markup.

Find the first paragraph in rendered HTML and return its inner HTML.

Parse a markdown string. Optionally skip parsing in case $str is a single line string.

Perform a regex match.

Search and replace by regex.

Cleans up a string to be used as URL, directory or file name.

The returned string constists of the following characters: "a-z", "0-9", "-" and optional dots ".". That means, this method is safe to be used with filenames as well, since it keeps by default the dots as suffix separators.

Note: To produce fully safe prefixes and directory names, possible dots should be removed by setting $removeDots = true.

Shortens a string keeping full words. Note that this method also first strips all tags from the given string.

Creates a slug for save diretory names, ids or similar from a given string.

In case the sanitized string is empty or the string is shorter than 6 chars while the input string is longer than 12 chars, the string is replaced with a md5 hash shortened to 16 chars.

Strip substring from end of string.

Strip substring from start of string.

Removes all HTML and Markdown (!) tags.