PHP – callable Keyword
The PHP callable keyword is used to force a function argument to be a reference to a function.
PHP – case Keyword
The PHP case keyword is used to jump to a line of code when an expression has a specific value in a switch conditional.
PHP – catch Keyword
The PHP catch keyword is used to handle exceptions that are thrown by the code in a preceding try block.
PHP – checkdate() Function
The PHP checkdate() function is used to check if a Gregorian date is valid.
PHP – ceil() Function
The PHP ceil() function rounds a number up to the nearest integer if necessary.
PHP – checkdnsrr() Function
The PHP checkdnsrr() function checks DNS records for type corresponding to host, and can be used to check our DNS record to verify a domain’s existence.
PHP – chroot() Function
The PHP chroot() function changes the root directory of the current process to directory, and changes the current working directory to “/”.
PHP – compact() Function
The PHP compact() function creates an array from variables and their values. Any strings that does not match variable names will be skipped.
PHP – connection_aborted() Function
The PHP connection_aborted() function checks whether the client has disconnected.
PHP – connection_status() Function
The PHP connection_status() function returns the current connection status.
PHP – const Keyword
The PHP const keyword is used to create constants, and must be declared in the global scope.