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李二狗 — @Meniny
Published 12:01 Jan 21, 2012.
Created by @ezra. Categorized in #Programming, and tagged as #PHP.
Source format: Markdown
浮点型，表示浮点数、双精度数或实数，可以用小数点或者科学计数法表示。科学计数法可以使用小写 e，也可以使用大写的 E:
<?php
$num_float = 1.234; //小数点
$num_float = 1.2e3; //科学计数法，小写e
$num_float = 7.0E-10; //科学计数法，大写E
?>
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