note 93614 deleted from language.operators.comparison by cmb

From: Date: Sun, 11 Aug 2019 11:43:36 +0000
Subject: note 93614 deleted from language.operators.comparison by cmb
References: 1  Groups: php.notes 
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Note Submitter: pinkgothic at gmail dot com ---- "Array with fewer members is smaller, if key from operand 1 is not found in operand 2 then arrays are uncomparable, otherwise - compare value by value (see following example)." The example covers this behaviour, but it isn't immediately obvious, so: If you're doing loose comparisons in PHP, note that they differ from checking each value individually like $value1==$value2 by adding what amounts to an empty($value1)==empty($value2) check into the mix. I found this out by investigating some (to me) bizarre behaviour. [Note that the example contains no ==, just > and <. It's its absence that perceivedly 'causes empty() to fire'.] I was also pleasantly surprised to see PHP recurse. Also clear if you keep in mind that the example implies another function call to itself with > and < if both operands are arrays, but IMO definitely worth stating. It might also be worth noting that the order of array keys doesn't matter, even if a foreach() would see a 'different' array. Again, covered by the example, but might be worth stressing.

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