Represents an immutable regular expression.To browse the .NET Framework source code for this type, see the Reference Source.
Match(string $input, string $pattern, $options = PREG_PATTERN_ORDER, $flags = null) : string
Searches the input string for the first occurrence of the specified regular expression, using the specified matching options.
| string | $input | The string to search for a match. |
| string | $pattern | The regular expression pattern to match. |
| $options | ||
| $flags |
An object that contains information about the match.
Matches(string $input, string $pattern, integer $options = PREG_PATTERN_ORDER, $flags = null) : array
Searches the specified input string for all occurrences of a specified regular expression, using the specified matching options.
| string | $input | The string to search for a match. |
| string | $pattern | The regular expression pattern to match. |
| integer | $options | A bitwise combination of the enumeration values that specify options for matching. |
| $flags |
A collection of the System.Text.RegularExpressions.Match objects found by the search. If no matches are found, the method returns an empty collection object.
Replace(string $input, string $pattern, string $replacement) : string
In a specified input string, replaces all strings that match a specified regular expression with a specified replacement string.
| string | $input | The string to search for a match. |
| string | $pattern | The regular expression pattern to match. |
| string | $replacement | The replacement string. |
A new string that is identical to the input string, except that the replacement string takes the place of each matched string. If pattern is not matched in the current instance, the method returns the current instance unchanged.