<?php // Does NOT work as expected. $sxml = simplexml_load_string('<test><num>20.5</num><den>1</den></test>'); $ans = $sxml->num / $sxml->den; echo "XML Test:\n"; echo "{$sxml->num} / {$sxml->den} = {$ans}\n"; // Output: 20.5 / 1 = 20 $ans = (string)$sxml->num / (string)$sxml->den; echo "{$sxml->num} / {$sxml->den} = {$ans}\n"; // Works as expected. $num = "20.5"; $den = "1"; $ans = $num / $den; echo "String Test:\n"; echo "{$num} / {$den} = {$ans}\n"; // Output: 20.5 / 1 = 20.5
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