24.4.7 Stop and Return of Processing
24.4.7.1 “exit” Statement and “die” Statement
“exit” statement is a command that prints the specified message and terminates the execution of the PHP script. “die” statement is the same command as “exit” statement.
exit ( [ status-message ] )
exit ( [ status-number ] )
24.4.6 Execution Control
24.4.6.1 Conditional Control
The base value for determining “True” or “False” in the conditional expression is as follows.
■ False — zero
■ True — 1 or non zero
24.4.5 Output
You can use “echo” and “print” commands to print processing results in PHP. Both perform almost the same function. The text to be processed may include an HTML tag.
24.4.5.1 “echo” Command
“echo” command has no return value and can process several parameters simultaneously.