Tuesday, May 28, 2019

PHP Break, Continue Control Statement !!

PHP Break, Continue Control Statement !!


php break,continue statement


In this article we discuss about these control statements,




Break 


The Break statement used in loops for bring the program control out of loops.

Break condition is used for break the loop for a certain condition.block out of loop will execute correctly.

In short,after break statement the loop is terminated and no code of loop is execute.

Break statements use in if-else, switch, for, while, do-while control statements.

Break Statement In For Loop


In code of for loop there is condition if that condition is true then break will execute and terminate the loop.

Syntax :

for (initialization; condition; increment/decrement)
{
   condition for break
{
   break
}
    code of for loop

Program :


Output :

1
2
3

Work :

Here, we take a = 1 initially, loop will occur till a become 5.

First time it prints 1, after that 2 and then 3 when a become 4 if condition become true and break will execute.

After break execute for loop terminate.

Break Statement In While Loop


When we want to know the number of iteration and want to perform simple program then we can use break statement.

when we not increment or decrement value on that case we have to use break statement.

Syntax :

while ( condition )
{
     code of loop
}
     break 

Program :

check the given number is 10 or not.


                                         

Output :

a is 10

Work :

In this program we only check either given number is 10 or not.

we take number which is 10 then it print 10 otherwise not.

if we not use break statement then the loop is go in infinite loop and code print for infinite time.

so, for execute code only once then we have to use break keyword.

Break With Switch Statement


In switch statement break statement use in cases for print the particular cases.

Break uses for print the particular case.

Program :


Output :

a is 10

As shown in above program we take a variable with value 10.

Switch goes to the case 10 and execute the block after that break will execute and switch terminate.

Continue 


Continue statement used work like break statement. the difference is break statement terminate the block and any code will not execute after break.

In, continue statement it takes control out of program for particular condition.

After that remaining code of block will execute.

Continue statement use when a single or particular condition only don't want to be execute.

It also use in loops like if-else, for, while etc..

Syntax :

for (initialization; condition; increment/decrement)
{
     condition for continue
}
      continue
      
Program :



Output :

1
2
3              ## only 4 will not print
5           
                 
Work : 

Range of a is 1 to 5 it means it executes for 5 times.

when a became 4 continue execute, it means it not prints the 4.

all process after and before is same all numbers are print except 4.

In this article we will discuss about break statement with for, while and switch statement.

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