(PECL spl_types >= 0.1.0)
The SplFloat class is used to enforce strong typing of the float type.
SplFloat::__default
Example #1 SplFloat usage example
<?php
$float = new SplFloat(3.154);
$newFloat = new SplFloat(3);
try {
$float = 'Try to cast a string value for fun';
} catch (UnexpectedValueException $uve) {
echo $uve->getMessage() . PHP_EOL;
}
echo $float . PHP_EOL;
echo $newFloat . PHP_EOL;
?>
以上例程会输出：
Value not a float 3.154 3