note 103597 added to language.operators.comparison
| From: | zak at minion dot net | Date: | Thu, 21 Apr 2011 18:18:51 +0000 |
| Subject: | note 103597 added to language.operators.comparison | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-179058@lists.php.net to get a copy of this message | ||
be careful when trying to concatenate the result of a ternary operator to a string
print '<div>'.(FALSE) ? 'TRUE [bad ternary]' : 'FALSE [bad
ternary]';
print '<br><br>';
print '<div>'.((FALSE) ? 'TRUE [good ternary]' : 'FALSE [good
ternary]');
yields:
TRUE [bad ternary]
FALSE [good ternary]
this is because the ternary evaluates '<div>'.(FALSE) not (FALSE) - so the end
result is TRUE
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Manual Page -- http://www.php.net/manual/en/language.operators.comparison.php
Edit -- https://master.php.net/note/edit/103597
Del: integrated -- https://master.php.net/note/delete/103597/integrated
Del: useless -- https://master.php.net/note/delete/103597/useless
Del: bad code -- https://master.php.net/note/delete/103597/bad+code
Del: spam -- https://master.php.net/note/delete/103597/spam
Del: non-english -- https://master.php.net/note/delete/103597/non-english
Del: in docs -- https://master.php.net/note/delete/103597/in+docs
Del: other reasons-- https://master.php.net/note/delete/103597
Reject -- https://master.php.net/note/reject/103597
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