In all programming languages, such as C language. JAVA and so on, all have the existence of if statements, of course, also include PHP. The if statement is used to select and execute different code snippets according to the conditions.
If statement
Before you introduce the "if" statement, know that the "if" statement is to meet the expression when the execution of a PHP statement, when the condition is not satisfied, is not executed, but, in most cases, always meet the conditions when the
1, if statement
An If statement is an important feature in most languages, and it executes the program segment according to the conditions. PHP's If statement is similar to C:
if (expr)
Statement
As discussed in an expression, expr is computed
In front of you to explain a multi-choice ElseIf statement, although this statement can make a variety of judgments, but when used, need to write a lot of if statements, to our program readability inconvenience, in order to avoid the IF statement
Joe Brockmeier briefly introduces the PHP scripting language, discusses the origin, performance, and application Platform of PHP. A simple example of a PHP script illustrates its basic syntax and usage.
If you are working on web-based development,
Example of a switch statement in PHP, Phpswitch statement
Switch is a switching statement, so many friends only know the simple switch switch statement usage, the following tutorial small series for you to introduce the switch usage example.
Only
Php process control statement. Php process control statements conditional control statements and cyclic control statements are two basic syntax structures. They are all used to control the program execution process and constitute the main syntax
Any php Tutorial script consists of a series of statements. A statement can be a value assignment statement, a function call, a loop, or even a (null statement) condition statement that does nothing. The statement usually ends with a semicolon. In
PHP control statement application. Application of PHP control statements 1. IF statements are an important feature of most languages. they execute program segments based on conditions. PHP's IF statement is similar to C: if (expr) statement, just as
PHP control statement. PHP control statement 1. IF statements are an important feature of most languages. they execute program segments based on conditions. PHP's IF statement is similar to C: if (expr) statement, just as PHP's control statement in
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