15-5.php3

来自「linux操作系统中 php 核心编程所有例程 都是一些很不错的案例」· PHP3 代码 · 共 42 行

PHP3
42
字号
<?
	/*
	** Check a ZIP code
	** This script will test a zip code, which
	** must be five digits optionally followed by
	** a dash and four digits.
	*/
	
	//start HTML page
	print("<HTML>\n");
	print("<HEAD>\n");
	print("<TITLE>Figure 15-5</TITLE>\n");
	print("</HEAD>\n");
	
	print("<BODY>\n");
		
	/*
	** if zip submitted evaluate it
	*/
	if(isset($zip))
	{
		if(ereg("^([0-9]{5})(-[0-9]{4})?$", $zip))
		{
			print("$zip is a valid ZIP code.<BR>\n");
		}
		else
		{
			print("$zip is <B>not</B> a valid ZIP code.<BR>\n");
		}
	}

	//start form
	print("<FORM ACTION=\"15-5.php3\">\n");
	print("<INPUT TYPE=\"text\" NAME=\"zip\">\n");
	print("<INPUT TYPE=\"submit\">\n");
	print("</FORM>\n");

	//close page
	print("</BODY>\n");
	print("</HTML>\n");
?>

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