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PHP5 Manual

PHP Manual
PrevChapter 16. Control StructuresNext

continue

continue is used within looping structures to skip the rest of the current loop iteration and continue execution at the condition evaluation and then the beginning of the next iteration.

Note: Note that in PHP the switch statement is considered a looping structure for the purposes of continue.

continue accepts an optional numeric argument which tells it how many levels of enclosing loops it should skip to the end of.

<?php
while (list($key, $value) = each($arr)) {
    if (!(
$key % 2)) { // skip odd members
        
continue;
    }
    
do_something_odd($value);
}

$i = 0;
while (
$i++ < 5) {
    echo
"Outer<br />\n";
    while (
1) {
        echo
"&nbsp;&nbsp;Middle<br />\n";
        while (
1) {
            echo
"&nbsp;&nbsp;Inner<br />\n";
            continue
3;
        }
        echo
"This never gets output.<br />\n";
    }
    echo
"Neither does this.<br />\n";
}
?>

Omitting the semicolon after continue can lead to confusion. Here's an example of what you shouldn't do.

<?php
  
for ($i = 0; $i < 5; ++$i) {
      if (
$i == 2)
          continue
      print
"$i\n";
  }
?>

One can expect the result to be :

0
1
3
4

but this script will output :

2

because the return value of the print() call is int(1), and it will look like the optional numeric argument mentioned above.


     Main Menu
PHP Manual
Table of Contents
Preface
Getting Started
Language Reference
Basic syntax
Types
Variables
Constants
Expressions
Operators
Control Structures
if
else
elseif
Alternative syntax for control structures
while
do-while
for
foreach
break
continue
switch
declare
return
require()
include()
require_once()
include_once()
Functions
Classes and Objects (PHP 4)
Classes and Objects (PHP 5)
Exceptions
References Explained
Security
Features
Function Reference
Zend API
PHP API: Interfaces for extension writers
FAQ: Frequently Asked Questions
Appendixes
Copyright


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