Is there a way to define global label (something like variables) for PHP goto, in order to use it inside function declaration. I want to do the following:
function myFunction() {
if (condition) {
goto someLine;
}
}
someLine:
// ....
myFunction();
when I use this code it says
PHP Fatal error: 'goto' to undefined label "someLine"
I know that it is not recommended to use goto statement. But I need it in my case. I know that perhaps always there are alternatives of goto, just in my case it would make the code a little easier and understandable
Answer
You cannot goto outside of a function I believe: http://php.net/manual/en/control-structures.goto.php
Direct Quote: 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.
This might have to do with the fact that php is parsed and jumping out of a function will cause a memory leak or something because it was never properly closed. Also as everyone else said above, really you don't need a goto. You can just return different values from the function and have a condition for each. Goto is just super bad practice for modern coding (acceptable if you are using basic).
Example:
function foo(a) {
if (a==1) {
return 1;
} elseif (a==3) {
return 2;
} else {
return 3;
}
}
switch (foo(4)) { //easily replaceable with elseif chain
case 1: echo 'Foo was 1'; break; //These can be functions to other parts of the code
case 2: echo 'Foo was 3'; break;
case 3: echo 'Foo was not 1 or 3';
}