Help with Json

[Sunnyisles]

Hi
Can someone help me with this code?

<?php
//DOLLAR//
$json_dolar=llamar_api("https://mercados.ambito.com//dolar/informal/variacion");
        $dolar=$json_dolar;
        $compra=$dolar->compra;
        $venta=$dolar->venta;
        $variacion=$dolar->variacion;
        $fecha=$dolar->fecha;
        $var2=$dolar->class-variacion;
?>

This is OK
<?php echo ($compra); ?>

This is Not, probably 'cause de Hyphen
<?php echo ($class-variacion); ?>

Thanks

[gw1500se]

First, please use the code icon (<>) in the menu and specify PHP for your code. You don't say what error your are getting but that syntax is probably wrong. You don't show how $class is defined but as a guess given almost no information from you I'd say you want this:

<?php echo ($class->variacion); ?>

 

[Sunnyisles]

PHP <> is OK
What I am not getting right is this
If yo go to this url https://mercados.ambito.com//dolar/informal/variacion you will see this key: class-variacion
It has a Hyphen so it does not work
$var=$dolar->class-variacion;
 

<?php echo ($var); ?>
 

[Barand]

Of course, the correct code could equally be

echo ($class - $variacion);

or

echo ($class_variacion);

but who can say as we have no idea what the line is supposed to do.

"'cause de Hyphen" doesn't really cut it as an explanation.

[Sunnyisles]

I just need to echo class-variacion from this url https://mercados.ambito.com//dolar/informal/variacion

Thanks

[dodgeitorelse3]

5 hours ago, Sunnyisles said:

I just need to echo class-variacion from this url https://mercados.ambito.com//dolar/informal/variacion

This doesn't use your api but if page is always formatted that way then possibly
 

 <?php
//DOLLAR//
    $json_dolar=file_get_contents("https://mercados.ambito.com//dolar/informal/variacion");
   
   $dolar=explode("\",", substr_replace(trim($json_dolar, '{}') ,"",-1));
        
	echo trim(explode("\":\"", $dolar[4])[1])."<br><br>";
	
	foreach($dolar as $key => $value){
		echo $value." OR ".trim(explode("\":\"", $dolar[$key])[1])."<br>";
	}

?>

Which displays

 

up

"compra":"202,50 OR 202,50
"venta":"206,50 OR 206,50
"fecha":"04\/01\/2022 - 16:45 OR 04\/01\/2022 - 16:45
"variacion":"0,24% OR 0,24%
"class-variacion":"up OR up

 

Edited January 5 by dodgeitorelse3

[Phi11W]

15 hours ago, Sunnyisles said:

$var2=$dolar->class-variacion;

You can work with hyphenated attribute names, but you have to wrap them up a bit more:  

$var2=$dolar->{'class-variacion'};

 

[Sunnyisles]

This is it, thanks Phi11W