This article mainly introduces how to use define to define constants in PHP. Interested friends can refer to it. I hope it will be helpful to everyone.
The details are as follows:
<?php /* * define * */ /*第3个参数: * false -- 对大小写敏感(默认) * true -- 对大小写不敏感 * */ define("pai",3.14); define ("name","LiLei",true); function testfor($x) { for($a=$x;$a<=12;$a++) { echo "现在是$a 点:"; if($a<9) { echo "敲代码"; echo name; } else { echo "睡觉"; echo pai; } echo "<br />"; } } testfor(10); ?>
The running results are as follows:
It is 10 o'clock now: sleeping 3.14
It is 11 o'clock now: sleeping 3.14
It’s 12 o’clock now: sleep 3.14
Summary: The above is the entire content of this article, I hope it will be helpful to everyone’s study.
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