Chapter 5 _ PHP process control _ PHP Tutorial

Chapter 5-PHP process control. 1. ordered Structure 2. branch structure 2.1if..else? (W); (0 Sunday !} Sorry !? 2.2if..elseif2.3switch3. loop structure 3.1 while? 1 (100. ++? 3.2do..while and CC + 1. sequential structure

2. branch structure

2.1 if... else

2.2 if... elseif

2.3 switch

3. loop structure

3.1 while

3.2 do... while

Similar to C/C ++

3.3

 
 '(= 0; <; + []. ''?>

3.4Foreach

The foreach statement is used to traverse arrays. There are two syntax formats:

① Foreach (array name as element name ){

Statement block;

}

② Foreach (array name as key name => element name ){

Statement block;

}

The former example is as follows:

 
 '(. ''?>

Examples of the latter are as follows:

 
 'Sunday', 'Monday' => 'Monday', 'Tuesday' => 'Tuesday', 'Wednesday', 'Thursday' => 'Thursday ', 'Friday' => 'Friday', 'Saturday' => 'Saturday' = ('Array size '..'
'(=>.': '...'?>

4. break and continue

The break can be followed by a number, indicating that the number of repeated loops is exceeded, and the continue can be followed by a number, indicating that the statements that have not been executed after the number of repeated loops are exceeded.

Limit 2. branch structure 2.1 if... else? = ("W"); (= 0 'Sunday! '}' Sorry! '? 2.2 if... elseif 2.3 switch 3. loop structure 3.1 while? = 1 (= 100. ''+ +? 3.2 do... while and C/C ++...