## `goto`

(PHP 5 >= 5.3.0, PHP 7)

Image courtesy of » xkcd

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`.

Example #1 `goto` example

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

The above example will output:

    Bar

Example #2 `goto` loop example

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

The above example will output:

    j hit 17

Example #3 This will not work

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

The above example will output:

    Fatal error: 'goto' into loop or switch statement is disallowed in
    script on line 2