PHP Tutorial Part 21 : PHP continue statement

PHP continue statement The PHP continue statement is used to continue the loop. It continues the current flow of the program and skips the remaining code at the specified condition. The continue statement is used within looping and switch control structure when you immediately jump to the next iteration. The continue statement can be used with all types of loops such as - for, while, do-while, and foreach loop. The continue statement allows the user to skip the execution of the code for the specified condition. Syntax The syntax for the continue statement is given below: jump-statement;   continue;   jump-statement; continue; PHP Continue Example with for loop Example In the following example, we will print only those values of i and j that are same and skip others. <?php       //outer loop       for ($i =1; $i<=3; $i++) {           //inner loop           for ($j=1; $j<=3; $j++) {               if (!($i == $j) ) {                   continue;       //skip when i and j does not have same values               }               echo $i.$j;               echo "</br>";           }       }   ?>   <?php //outer loop for ($i =1; $i<=3; $i++) { //inner loop for ($j=1; $j<=3; $j++) { if (!($i == $j) ) { continue; //skip when i and j does not have same values } echo $i.$j; echo "</br>"; } } ?> Output: 11 22 33 PHP continue Example in while loop Example In the following example, we will print the even numbers between 1 to 20. <?php       //php program to demonstrate the use of continue statement          echo "Even numbers between 1 to 20: </br>";       $i = 1;       while ($i<=20) {           if ($i %2 == 1) {               $i++;               continue;   //here it will skip rest of statements           }           echo $i;           echo "</br>";           $i++;       }      ?>   <?php //php program to demonstrate the use of continue statement echo "Even numbers between 1 to 20: </br>"; $i = 1; while ($i<=20) { if ($i %2 == 1) { $i++; continue; //here it will skip rest of statements } echo $i; echo "</br>"; $i++; } ?> Output: Even numbers between 1 to 20: 2 4 6 8 10 12 14 16 18 20 PHP continue Example with array of string Example The following example prints the value of array elements except those for which the specified condition is true and continue statement is used. <?php       $number = array ("One", "Two", "Three", "Stop", "Four");       foreach ($number as $element) {           if ($element == "Stop") {               continue;           }           echo "$element </br>";       }   ?>   <?php $number = array ("One", "Two", "Three", "Stop", "Four"); foreach ($number as $element) { if ($element == "Stop") { continue; } echo "$element </br>"; } ?> Output: One Two Three Four PHP continue Example with optional argument The continue statement accepts an optional numeric value, which is used accordingly. The numeric value describes how many nested structures it will exit. Example Look at the below example to understand it better: <?php       //outer loop       for ($i =1; $i<=3; $i++) {           //inner loop           for ($j=1; $j<=3; $j++) {               if (($i == $j) ) {      //skip when i and j have same values                   continue 1;     //exit only from inner for loop                }               echo $i.$j;               echo "</br>";           }       }      ?>   <?php //outer loop for ($i =1; $i<=3; $i++) { //inner loop for ($j=1; $j<=3; $j++) { if (($i == $j) ) { //skip when i and j have same values continue 1; //exit only from inner for loop } echo $i.$j; echo "</br>"; } } ?> Output: 12 13 21 23 31 32