"break" and "continue" Statements

This section describes how 'break' and 'continue' statements works in PHP. 'break' statement breaks the statement block and the loop. 'continue' statement breaks the statement block, but continues on the next iteration of the loop.

In order to help us control the execution flow better, PHP provides two special statements, "break" and "continue", for statement blocks:

1. "break" statement with no option: It breaks the current statement block and the current loop where the "break" statement is located. The remaining statements in the current statement block will not be executed. If current statement block is running as a loop, the loop will also be terminated.

   any_block {
      ...
      any_block {
         ... 
         any_block {
            ...
            break;
            ...
         }
         ...
      }
      ...
   }

2. "break" statement with an option of integer, n: It breaks statement blocks and loops n levels backward. The remaining statements in all n levels of statement blocks will not be executed. If any of those statement blocks are loops, those loops will also be terminated.

   any_block {
      ...
      any_block {
         ... 
         any_block {
            ...
            break n;
            ...
         }
      }
   }

3. "continue" statement with no option: It breaks the current statement block and continues on the next iteration of the current loop where the "continue" statement is located. The remaining statements in the current statement block will not be executed. But the loop will continue on the next iteration, if current statement block is running as a loop.

   any_block {
      ...
      any_block {
         ... 
         any_block {
            ...
            continue;
            ...
         }
         ...
      }
      ...
   }

4. "continue" statement with an option of integer n: It breaks statement blocks and loops n levels backward. The remaining statements in all n levels of statement blocks will not be executed. But the n-th level loop will be continued on the next iteration, if the n-th level statement block is running as a loop.

   any_block {
      ...
      any_block {
         ... 
         any_block {
            ...
            continue n;
            ...
         }
         ...
      }
      ...
   }

I will leave it to you to write some sample scripts for "break" and "continue" statements as exercises.

Last update: 2015.

Table of Contents

 About This Book

 Introduction and Installation of PHP 7.0

 PHP Script File Syntax

 PHP Data Types and Data Literals

 Variables, References, and Constants

 Expressions, Operations and Type Conversions

 Conditional Statements - "if" and "switch"

Loop Statements - "while", "for", and "do ... while"

 "while" Statements

 "while" Statement Examples

 "for" Statements

 "for" Statement Examples

 "do ... while" Statements

"break" and "continue" Statements

 Function Declaration, Arguments, and Return Values

 Arrays - Ordered Maps

 Configuring and Sending out Emails

 Retrieving Information from HTTP Requests

 Creating and Managing Sessions in PHP Scripts

 Sending and Receiving Cookies in PHP Scripts

 Controlling HTTP Response Header Lines in PHP Scripts

 MySQL Server Connection and Access Functions

 Functions to Manage Directories, Files and Images

 SOAP Extension Function and Calling Web Services

 SOAP Server Functions and Examples

 Localization Overview of Web Applications

 Using Non-ASCII Characters in HTML Documents

 Using Non-ASCII Characters as PHP Script String Literals

 Receiving Non-ASCII Characters from Input Forms

 "mbstring" Extension and Non-ASCII Encoding Management

 Managing Non-ASCII Character Strings with MySQL Servers

 Introduction of Class and Object

 Integrating PHP with Apache Web Server

 Outdated Tutorials

 References

 PDF Printing Version