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goto statement


The goto operator can be used to jump to another section in the program. The target point is specified by a label followed by a colon, and the instruction is given as goto followed by the desired target label. This is not a full unrestricted goto. The target label must be within the same file and context, meaning that you cannot jump out of a function or method, nor can you jump into one. You also cannot jump into any sort of loop or switch structure. You may jump out of these, and a common use is to use a goto in place of a multi-level break.


              <?php
            goto a;
            echo 'Foo';
             
            a:
            echo 'Bar';
            ?>
            

              <?php
            for($i=0,$j=50; $i<100; $i++) {
              while($j--) {
                if($j==17) goto end; 
              }  
            }
            echo "i = $i";
            end:
            echo 'j hit 17';
            ?>
            

              <?php
            goto loop;
            for($i=0,$j=50; $i<100; $i++) {
              while($j--) {
                loop:
              }
            }
            echo "$i = $i";
            ?>