Can you exit a loop in PHP

Question

I have a loop that is doing some error checking in my PHP code  Originally it looked something like this     foreach  results as  result        if    condition             halt   true          ErrorHandler  addErrorToStack  Unexpected result                doSomething        if    halt           do what I want cos I know there was no error     This works all well and good  but it is still looping through despite after one error it needn t  Is there a way to escape the loop

User · Answer

arr   array  one    two    three    four    stop    five    foreach   arr as  val        if   val     stop             break        You could also write  break 1   here               echo   val lt br   gt  n

User · Answer

break  leaves your loop   continue  skips any code for the remainder of that loop and goes on to the next loop  so long as the condition is still true

User · Answer

You are looking for the break statement    arr   array  one    two    three    four    stop    five    while  list    val    each  arr         if   val     stop             break        You could also write  break 1   here               echo   val lt br   gt  n

User · Answer

As stated in other posts  you can use the break keyword  One thing that was hinted at but not explained is that the keyword can take a numeric value to tell PHP how many levels to break from   For example  if you have three foreach loops nested in each other trying to find a piece of information  you could do  break 3  to get out of all three nested loops  This will work for the  for    foreach    while    do-while   or  switch  structures    person    Rasmus Lerdorf    found   false   foreach  organization as  oKey  gt  department       foreach  department as  dKey  gt  group             foreach  group as  gKey  gt  employee                   if   employee  fullname       person                          found   true              break 3                        group         department      organization

User · Answer

All of these are good answers  but I would like to suggest one more that I feel is a better code standard  You may choose to use a flag in the loop condition that indicates whether or not to continue looping and avoid using break all together    arr   array  one    two    three    four    stop    five     length   count  arr    found   false  for   i   0   i  lt   length  amp  amp    found   i           val    arr  i       if   val     stop              found   true     this will cause the code to                            stop looping the next time                            the condition is checked           echo   val lt br   gt  n       I consider this to be better code practice because it does not rely on the scope that break is used  Rather  you define a variable that indicates whether or not to break a specific loop  This is useful when you have many loops that may or may not be nested or sequential

User · Answer

You can use the break keyword

[php] Can you 'exit' a loop in PHP?

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