PHP flow control if statement

This article mainly introduces the if statement in PHP process control, which has certain reference value. Now I share it with everyone. Friends in need can refer to it

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The if structure is one of the most important features of many languages, including PHP, which allows code fragments to be executed conditionally. PHP's if structure is similar to the C language:

If is greater than , the following example will showa is bigger than b:

 $b) echo "a is bigger than b"; ?>

It is often necessary to execute more than one statement according to conditions , of course, there is no need to add an if clause to every statement. These statements can be placed into statement groups. For example, if is greater than , the following code will displaya is bigger than band assign the value of :

 $b) { echo "a is bigger than b"; $b = $a; } ?>

if statements can be nested infinitely deep within other if statements, which gives the program Provides full flexibility for conditional execution of different parts.

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