CODEWITHSUNDEEP
phpfunctionclosures
user2800629
user2800629

Reputation:

Closure behaving unexpectedly

I have a closure inside a function but when it is called the return value is not where i expected it to be.

public function test($name, $content)
{
     $test = "\t<div id=\"{$name}\">{$content()}</div>\n";
     return $test;
}

Instead of returning this...

<div id="name">content</div>

It instead returns...

content
<div id="name"></div>

If you have any idea how to fix this to display properly then i would be a very happy man, thanks in advance.

Upvotes: 0

Views: 31

Answers (2)

JJJ
JJJ

Reputation: 33143

You haven't showed the $content() function, but from the symptoms I assume it prints the content instead of returning it. What happens is that the test() function calls the $content() function which displays the content and returns nothing, then test() returns and something else prints the return value.

To fix it simply have $content() return the content instead of printing it.

Upvotes: 2

Matt S
Matt S

Reputation: 15374

Let the closure execute and catch what's returned. Then insert the result:

public function test($name, $content)
{
     $insert = $content();
     $test = "\t<div id=\"{$name}\">{$insert}</div>\n";
     return $test;
}

Upvotes: -1

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