PatternSyntaxExceptionClass - Indicates syntax error in a regular expression pattern ExampleGet your own Java Server Find out if there are any occurrences of the word "w3schools" in a sentence: importjava.util.regex.Matcher;importjava.util.regex.Pattern;publicclassMain{publicstaticvoidmain(String[]...
ExampleGet your own PHP Server Use a regular expression to do a case-insensitive search for "w3schools" in a string: $str="Visit W3Schools";$pattern="/w3schools/i";echopreg_match($pattern,$str); Try it Yourself » Using preg_match_all() ...