PHP Multidimentional Array error

Question

We are working on a Monopoly game in PHP as a class project and none of us cab figure this out. We need to create and use a multidimentional array for the properties in the game. Below is an example of what this looks like.

$arr2=array();
$prop=array(1,3,6);
$cost=array(60,60,100);

$stuff=$prop[0];
$arr2[$stuff][9]=$cost[0];
echo"$stuff --- $arr2[$stuff][9]"; //(this is line 64)

When we try to run this, we get this output.

Notice: Array to string conversation in ... line 64
1 --- Array[9]

Why is it giving us "Array[9]" instead of 60? Thank you for your time.

echo "{$stuff} --- {$arr2[$stuff][9]}"; try this

Dale
– Dale

2016-05-23 18:11:55 +00:00
Commented May 23, 2016 at 18:11 — Dale
– Dale, Commented May 23, 2016 at 18:11

AbraCadaver · Accepted Answer · 2016-05-23 18:20:18Z

3

Complex array and object expressions need to be wrapped in curly braces {}:

echo "$stuff --- {$arr2[$stuff][9]}";

Or break out of the quotes and concatenate:

echo "$stuff --- " . $arr2[$stuff][9];
//or
echo $stuff . " --- " . $arr2[$stuff][9];

See Variable Parsing - Complex (curly) Syntax.

edited May 23, 2016 at 18:20

answered May 23, 2016 at 18:14

AbraCadaver

79.2k7 gold badges75 silver badges91 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

Murad Hasan · Accepted Answer · 2016-05-23 18:14:11Z

1

echo a PHP variable has its own convention, you can echo a variable as string but sometime it will not work perfectly, So you need to use . concatenation of the variable with string.

echo $stuff." --- ".$arr2[$stuff][9]; //1 --- 60

If you want to use variables inside echo then must use {}.

echo "{$stuff} --- {$arr2[$stuff][9]}"; //1 --- 60

edited May 23, 2016 at 18:14

answered May 23, 2016 at 18:12

Murad Hasan

9,5932 gold badges23 silver badges43 bronze badges

1 Comment

Jay Blanchard Over a year ago

Why should the OP "try something like this"? A good answer will always have an explanation of what was done and why it was done in such a manner, not only for the OP but for future visitors to SO.

user2560539 · Accepted Answer · 2016-05-23 18:29:23Z

0

Simply change this part

echo"$stuff --- $arr2[$stuff][9]"; //(this is line 64)

with this

echo $stuff." --- ".$arr2[$stuff][9]; //(this is line 64)

You can check it out in this Fiddle

answered May 23, 2016 at 18:29

user2560539

Collectives™ on Stack Overflow

PHP Multidimentional Array error

3 Answers 3

Comments

1 Comment

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

Comments

1 Comment

Comments

Your Answer

Sign up or log in

Post as a guest

Related