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Returns string with the first n occurrences of target replaced with replacement. Omitting count will replace all occurrences. Space counts as a character if placed in any of the first three parameters.
Magic quotes was a feature of the PHP scripting language, wherein strings are automatically escaped—special characters are prefixed with a backslash—before being passed on. It was introduced to help newcomers write functioning SQL commands without requiring manual escaping.
By contrast, a character entity reference refers to a sequence of one or more characters by the name of an entity which has the desired characters as its replacement text. The entity must either be predefined (built into the markup language), or otherwise explicitly declared in a Document Type Definition (DTD) (see [a]). The format is the same ...
String functions are used in computer programming languages to manipulate a string or query information about a string (some do both).. Most programming languages that have a string datatype will have some string functions although there may be other low-level ways within each language to handle strings directly.
In software, a wildcard character is a kind of placeholder represented by a single character, such as an asterisk (*), which can be interpreted as a number of literal characters or an empty string. It is often used in file searches so the full name need not be typed.
'SCH' then replace the string with 'SSS' 'PH' then replace the string with 'FF' If the current position is the letter 'H' and either the preceding or following letter is not a vowel (AEIOU) then replace the current position with the preceding letter. If the current position is the letter 'W' and the preceding letter is a vowel then replace the ...
This has been supported for classes and interfaces since PHP 5.0, for arrays since PHP 5.1, for "callables" since PHP 5.4, and scalar (integer, float, string and boolean) types since PHP 7.0. [71] PHP 7.0 also has type declarations for function return types, expressed by placing the type name after the list of parameters, preceded by a colon ...
Returns the argument with some characters preceded with the escape character "\", so that the string can be used in a regular expression without those characters having a special meaning. set: Sets a variable (first string) with a given value (second argument) for further use in the filter. Another syntax: name := value. set_var: Same as set.