Using variable on chunk function Laravel

Question

I need to use a variable into a method on laravel 4, how can i pass this variable to the method chunk from eloquent?

$variableonmethod=array('value1','value2');
PreAlumno::chunk(200, function($prealumnos) {
        foreach ($prealumnos as $pre) {
           //do something with variableonmethod
        }
});

Answer 1

If you like only read information

$variableonmethod=array('value1','value2');
PreAlumno::chunk(200, function($prealumnos) use ($variableonmethod) {
    echo variableonmethod[0]; // prints `value1`
    variableonmethod[0] = 'Hola';
    echo variableonmethod[0]; // prints `Hola`
    foreach ($prealumnos as $pre) {
       //do something with variableonmethod
    }
});
echo variableonmethod[0]; // prints `value1`

But, if you like to read array AND CHANGE THEIR VALUES (check & on use)

$variableonmethod=array('value1','value2');
PreAlumno::chunk(200, function($prealumnos) use (&$variableonmethod) {
    echo variableonmethod[0]; // prints `value1`
    variableonmethod[0] = 'Hola';
    echo variableonmethod[0]; // prints `Hola`
    foreach ($prealumnos as $pre) {
       //do something with variableonmethod
    }
});
echo variableonmethod[0]; // prints `Hola`

Answer 2

You can pass the array using the use ($var) to achieve your result.

$variableonmethod=array('value1','value2');
PreAlumno::chunk(200, function($prealumnos) use ($variableonmethod) {
    foreach ($prealumnos as $pre) {
       //do something with variableonmethod
    }
});