![]() ![]() Regular expression used to test for an integer in Numbers may be preceded by a plus or minus sign. $count = to_count('foo') # Returns undef.įalse if it is not. $count = to_count(.22) # Returns undef (rounded down to 0). It finds and convert that number to a counting number. Numbers and letters, to_count() will extract the first decimal number That since 0 (zero) is not considered a counting number by this module, it Numbers will be rounded to the nearest counting number. Returns true if $val is a counting number $whole = to_whole('foo') # Returns undef. To_whole() will extract the first decimal number it finds and convert ![]() $val is a mixture of numbers and letters, Numbers will be rounded to the nearest whole. FUNCTIONS ¶ is_whole ¶ my $bool = is_whole($val) :to Exports all conversion functions: to_whole(), to_int(), :is Exports all validation functions: is_whole(), is_int(), :string Exports is_string() and to_string(). :float Exports is_float() and to_float(). ![]() :decimal Exports is_decimal() and to_decimal(). :count Exports is_count() and to_count(). Supported: :whole Exports is_whole() and to_whole(). No functions are exported by default, though each function may beĮxported explicitly (see "FUNCTIONS" below, for a list ofįunctions available for export). Where data types are more important than they typically are in Perl - e.g., This module exports a number of functions that are useful for $string = to_string($string) unless is_string($string) $float = to_float($float) unless is_float($float) $real = to_real($real) unless is_real($real) $decimal = to_decimal($decimal) unless is_decimal($decimal) $whole = to_whole($whole) unless is_whole($whole) Modifiers can change how a search is performed.Data::Types - Validate and convert data types. The preg_match() function will tell you whether a string contains matches of a pattern. Returns a new string where matched patterns have been replaced with another string Returns the number of times the pattern was found in the string, which may also be 0 Returns 1 if the pattern was found in the string and 0 if not Preg_match(), preg_match_all() and preg_replace() functions are some of the PHP provides a variety of functions that allow you to use regular expressions. ![]() Slashes it is convenient to choose other delimiters such as # or ~. Most common delimiter is the forward slash (/), but when your pattern contains forward The delimiter can be any character that is not a letter, number, backslash or space. In the example above, / is the delimiter, w3schools is the pattern that is being searched for,Īnd i is a modifier that makes the search case-insensitive. PHP Examples PHP Examples PHP Compiler PHP Quiz PHP Exercises PHP Certificate PHP - AJAX AJAX Intro AJAX PHP AJAX Database AJAX XML AJAX Live Search AJAX Poll PHP XML PHP XML Parsers PHP SimpleXML Parser PHP SimpleXML - Get PHP XML Expat PHP XML DOM MySQL Database MySQL Database MySQL Connect MySQL Create DB MySQL Create Table MySQL Insert Data MySQL Get Last ID MySQL Insert Multiple MySQL Prepared MySQL Select Data MySQL Where MySQL Order By MySQL Delete Data MySQL Update Data MySQL Limit Data PHP OOP PHP What is OOP PHP Classes/Objects PHP Constructor PHP Destructor PHP Access Modifiers PHP Inheritance PHP Constants PHP Abstract Classes PHP Interfaces PHP Traits PHP Static Methods PHP Static Properties PHP Namespaces PHP Iterables PHP Advanced PHP Date and Time PHP Include PHP File Handling PHP File Open/Read PHP File Create/Write PHP File Upload PHP Cookies PHP Sessions PHP Filters PHP Filters Advanced PHP Callback Functions PHP JSON PHP Exceptions PHP Forms PHP Form Handling PHP Form Validation PHP Form Required PHP Form URL/E-mail PHP Form Complete Superglobals $GLOBALS $_SERVER $_REQUEST $_POST $_GET PHP RegEx ![]()
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