w3docs logo
  1. Snippets
    2. ›
  2. regex

How-to articles, tricks, and solutions about REGEX

Java string split with "." (dot)

To split a string in Java using a dot (.) as the delimiter, you can use the split method of the String class.

java string regex split indexoutofboundsexception

Java; String replace (school project)?

To replace a substring in a string in Java, you can use the replace() method of the String class.

java regex

PHP Regex to get youtube video ID?

You can use the following regular expression to extract the YouTube video ID from a URL:

php regex

PHP string "contains"

To check if a string contains another string in PHP, you can use the strpos() function.

php string regex

PHP/regex: How to get the string value of HTML tag?

In PHP, you can use the preg_match() function to extract the string value of an HTML tag.

html php regex

Python string.replace regular expression

You can use the re module in Python to use regular expressions with the replace() method.

regex replace python

Regex pattern including all special characters

To create a regular expression that includes all special characters, you can use the following pattern:

java regex

Remove all non-numeric characters from a string; [^0-9] doesn't match as expected

You can use the preg_replace function in PHP to remove all non-numeric characters from a string.

php string regex phone-number sanitization

Remove all special characters, punctuation and spaces from string

Here is an example of code that removes all special characters, punctuation, and spaces from a string in Python:

string regex python

Remove control characters from PHP string

In PHP, you can use the preg_replace function to remove control characters from a string.

php string regex