(PHP 4 >= 4.0.4, PHP 5, PHP 7) Check for any printable character(s) except space bool ctype_graph ( string $text ) Checks if all of the characters in the provided string, text, creates visible output. Parameters: text The tested string. Returns: Returns TRUE if every character in text is printable and actually creates visible output (no white

(PHP 4 >= 4.0.4, PHP 5, PHP 7) Check for numeric character(s) bool ctype_digit ( string $text ) Checks if all of the characters in the provided string, text, are numerical. Parameters: text The tested string. Returns: Returns TRUE if every character in the string text is a decimal digit, FALSE otherwise. Changel

(PHP 4 >= 4.0.4, PHP 5, PHP 7) Check for control character(s) bool ctype_cntrl ( string $text ) Checks if all of the characters in the provided string, text, are control characters. Control characters are e.g. line feed, tab, escape. Parameters: text The tested string. Returns: Returns TRUE if every character in text is a control character fro

(PHP 4 >= 4.0.4, PHP 5, PHP 7) Check for alphabetic character(s) bool ctype_alpha ( string $text ) Checks if all of the characters in the provided string, text, are alphabetic. In the standard C locale letters are just [A-Za-z] and ctype_alpha() is equivalent to (ctype_upper($text) || ctype_lower($text)) if $text is just a single character, but other languages have letters that are considered neither upper nor lower case.

(PHP 4 >= 4.0.4, PHP 5, PHP 7) Check for alphanumeric character(s) bool ctype_alnum ( string $text ) Checks if all of the characters in the provided string, text, are alphanumeric. Parameters: text The tested string. Returns: Returns TRUE if every character in text is either a letter or a digit, FALSE otherwise.

(PECL classkit >= 0.1) Dynamically changes the name of the given method bool classkit_method_rename ( string $classname, string $methodname, string $newname ) Note: This function cannot be used to manipulate the currently running (or chained) method. Parameters: classname The class in which to rename the method methodname

(PECL classkit >= 0.1) Dynamically removes the given method bool classkit_method_remove ( string $classname, string $methodname ) Note: This function cannot be used to manipulate the currently running (or chained) method. Parameters: classname The class in which to remove the method methodname The name of the method to rem

(PECL classkit >= 0.1) Dynamically changes the code of the given method bool classkit_method_redefine ( string $classname, string $methodname, string $args, string $code [, int $flags = CLASSKIT_ACC_PUBLIC ] ) Note: This function cannot be used to manipulate the currently running (or chained) method. Parameters: classname The class in which to redefine the

(PECL classkit >= 0.2) Copies a method from class to another bool classkit_method_copy ( string $dClass, string $dMethod, string $sClass [, string $sMethod ] ) Parameters: dClass Destination class for copied method dMethod Destination method name sClass Source class of the method to copy

(PECL classkit >= 0.1) Dynamically adds a new method to a given class bool classkit_method_add ( string $classname, string $methodname, string $args, string $code [, int $flags = CLASSKIT_ACC_PUBLIC ] ) Parameters: classname The class to which this method will be added methodname The name of the method to add ar