PHP – define() Function
The PHP define() function defines a constant.
PHP – dir() Function
The PHP dir() function returns an instance of the Directory class and is used to read a directory.
PHP – disk_free_space() Function
The PHP disk_free_space() function returns the free space, in bytes, of the specified filesystem or disk.
PHP – disk_total_space() Function
The PHP disk_total_space() function returns the total size, in bytes, of the specified filesystem or disk.
PHP – dns_check_record() Function
The PHP dns_check_record() function is an alias of the checkdnsrr() function.
PHP – do Keyword
The PHP do keyword creates a loop which always runs at least once. It is used together with the while keyword to create a do…while loop.
PHP – dns_get_record() Function
The PHP dns_get_record() function gets the DNS resource records associated with the specified hostname.
PHP – easter_date() Function
The PHP easter_date() function returns the Unix timestamp for midnight on Easter of the current year, or a given year if specified.
PHP – easter_days() Function
The PHP easter_days() function returns the number of days after March 21, that the Easter Day is in the current year, or a given year if specified.
PHP – echo Keyword
The PHP echo keyword is used to output text, and can output multiple strings separated by commas.
PHP – else Keyword
The PHP else keyword specifies a block of code which should run when the condition of an if statement is not met.
PHP – elseif Keyword
The PHP elseif keyword tests a new condition if the condition of a previous if or elseif statement was not met.
PHP – empty Keyword
The PHP empty keyword acts as a function which returns true if a variable does not exist, or if its value is considered empty.
PHP – end() Function
The PHP end() function moves the internal pointer to the last element in the array and outputs that element.
PHP – enddeclare Keyword
The PHP enddeclare keyword is used to close a declare block which was started using the declare syntax.
PHP – endfor Keyword
The PHP endfor keyword is used to close the code block of a for loop which was started using the for syntax.