How do you add an array value inside a PHP string [duplicate]

Maybe you need to remove $var from memory by unset($var) if you want use it again as an array not as a string.

$var = 'works';
echo "test {$var}";
//test works

unset($var);// if don't use this 
//Fatal error will be thrown TypeError: Cannot access offset of type string on string


$var['value'] = 'also works';
echo "test {$var['value']}";
//test also works

If it is an Array you should specify the index of value

echo "test $var[0]";

Or

echo "test {$var['0']}";

You should be able to just do echo "test $var[value]". This example worked perfectly for me:

$arr1 = array(
        "foo" => "hello",
        "bar" => "world"
    );
echo "Test $arr1[foo]\n";

$arr2 = array("hello", "world");
echo "Test $arr2[1]\n";

// You can also use variables
$get1 = "foo";
$get2 = 1;

echo "Test $arr1[$get1]\n";
echo "Test $arr2[$get2]\n";

This ouputs:

Test hello
Test world
Test hello
Test world

just use:

"test".$var['value']." ."

or

echo <<<EOHTML
<td>{$var['value']}</td>
EOHTML;