ternary operator processing error laravel

Question

I have this problem. In plain PHP, this function is working perfectly and returns correct result:

$focos_3[ (array_search("$c", $cidades_3) ? array_search("$c", $cidades_3) : ('') ) ]

OBS: sometimes $c is not set.

But when I put it in Laravel its stops working and throw me "Undefined index:". Without index indication.

Doing some tests, I found that if I do this:

array_search("$c", $cidades_3)

or this

in_array("$c", $cidades_3)

works perfectly, even if $c is not set.

Some answers:

$cidades_3 starts at index 1 $focos_3 is array of values that will return a result on position that was requested.

The whole function which I need to get working is this:

foreach ($cidades as $c) 
    {
        $registros = array(
            "Estado"    => $estados[$c],
            "Municipio" => $c, 
            "tres_dias" => $focos_3[ (array_search("$c", $cidades_3) >=0 ? array_search("$c", $cidades_3) : ('') ) ], 
            "dois_dias" => $focos_2[ (array_search("$c", $cidades_2) >=0 ? array_search("$c", $cidades_2) : ('') ) ], 
            "um_dia"    => $focos_1[ (array_search("$c", $cidades_1) >=0 ? array_search("$c", $cidades_1) : ('') ) ], 
            "total"     => (
                                         ($focos_3[ (array_search("$c", $cidades_3) >=0 ? array_search("$c", $cidades_3) : ('') ) ]) + 
                                         ($focos_2[ (array_search("$c", $cidades_2) >=0 ? array_search("$c", $cidades_2) : ('') ) ]) + 
                                         ($focos_1[ (array_search("$c", $cidades_1) >=0 ? array_search("$c", $cidades_1) : ('') ) ])
                                         ) 
            );
    }

And yes, its similar problem to this question (Laravel breaks entire app on PHP notices), but there we have not very goo solution (suppression error).

This seems to be an issue related to error reporting options. Check this out: http://stackoverflow.com/questions/18497788/laravel-breaks-entire-app-on-php-notices — Gustavo Straube, Apr 10 '17 at 12:54
What is supposed to happen if $c is found at index 0 in $cidades_3? Or if the value of $c is 'x' and the array contains an entry with the value 0 (or vice versa)? — Mark Baker, Apr 10 '17 at 12:54
Possible duplicate of [Laravel breaks entire app on PHP notices](http://stackoverflow.com/questions/18497788/laravel-breaks-entire-app-on-php-notices) — Gustavo Straube, Apr 10 '17 at 12:54
How is `$focos_3` used? The error states that the index `''` is not defined, so that is not related to the `array_search` in your ternary operator, but to the index `''` on (most likely) the `$focos_3` array. — Robert, Apr 10 '17 at 13:03
If array search returns 0 (which may be valid) you'll get `''` returned by the ternary operator which is probably undefined. An undefined index is a warning which PHP usually swallows or writes somewhere, but Laravel treats as an unhandled exception. — apokryfos, Apr 10 '17 at 13:04

score 0 · Answer 1 · answered Apr 10 '17 at 13:04

0

Use if is set

if(isset($var){
//execute function
}

answered Apr 10 '17 at 13:04

Otávio Barreto

1,536
3
16
35

score -2 · Accepted Answer · answered Apr 17 '17 at 12:39

Indeed, in this case it was easier to suppress warning message with Laravel. Putting an '@' here solved error.

foreach ($cidades as $c) 
{
    @$registros = array(
        "Estado"    => $estados[$c],
        "Municipio" => $c, 
        "tres_dias" => $focos_3[ (array_search("$c", $cidades_3) >=0 ? array_search("$c", $cidades_3) : ('') ) ], 
        "dois_dias" => $focos_2[ (array_search("$c", $cidades_2) >=0 ? array_search("$c", $cidades_2) : ('') ) ], 
        "um_dia"    => $focos_1[ (array_search("$c", $cidades_1) >=0 ? array_search("$c", $cidades_1) : ('') ) ], 
        "total"     => (
                                     ($focos_3[ (array_search("$c", $cidades_3) >=0 ? array_search("$c", $cidades_3) : ('') ) ]) + 
                                     ($focos_2[ (array_search("$c", $cidades_2) >=0 ? array_search("$c", $cidades_2) : ('') ) ]) + 
                                     ($focos_1[ (array_search("$c", $cidades_1) >=0 ? array_search("$c", $cidades_1) : ('') ) ])
                                     ) 
        );
}

ternary operator processing error laravel

2 Answers2