用字符串连接分号

Question

Good day.

What I'm doing:

$str = "'"."a value"."'";
var_dump($str);

What I expect:

"'a value'"

What I recieve:

'a value'

Question: why? I am definitely NOT doing any transformation.

All values that are concatenated are strings, I've checked.

Output of the page sets header to be application/json, but I checked with text/html. Same result.

Tried shielding data as "\'", tried unhtmlspecialchars, tried json_decode. Same result.

magick_quotes - tried, not related, but tried. Same result.

Using Wamp(32) on Win7 php 5.3.13

UPDATE:

Just discovered that this happens ONLY in var_dump, while print_r and echo shows data as expected...

So - problem solved for a moment, but still - this is not a common behaviour, and an idea of - why it works that way would be appreciated.

Answer 1

Your quotes are misplaced:

$str = "'"."a value."'";
                    ^ here you close the " but you don't concatenate using .

Should be:

$str = "'" . "a value. " . "'" . "";

Although I'm not sure what are you trying to achieve, you could write this string in easier ways than doing this, example in sandobx.