CODEWITHSUNDEEP
phpecho
Harry
Harry

Reputation: 35

Why echo does not print the first part of the text

Why this only print out "-1". What happens to the first part of the text.

echo "2 results of this " .    "Apples" <=> "bananas";

Thanks

Upvotes: 0

Views: 126

Answers (2)

sumit
sumit

Reputation: 15464

Because it will 1st concatenate the string and then will apply the spaceship operator comparison

"

2 results of this " .    "Apples" <=> "bananas"; = -1
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^      ^^^^^^^^^
string1                               string2

try below

  $spaceship_result=  "Apples" <=> "bananas";
  echo "2 results of this ".$spaceship_result;

Upvotes: 1

Barmar
Barmar

Reputation: 781731

. has higher precedence than <=>, so it's parsed as if you'd written:

echo ("2 results of this " . "Apples") <=> "bananas";

which is equivalent to:

echo "2 results of this Apples" <=> "bananas";

So it's comparing these two strings and printing just the result.

Add parentheses to get what you want:

echo "2 results of this " . ("Apples" <=> "bananas");

Upvotes: 3

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