PHP主要字符 分享
PHP重要字符 分享
PHP的学习与交流
在PHP的编写中你会看到很多固定使用的关键字和字符 像$
字体设计和效果：
用来标记文字斜体；
用来标记文字加粗；
用来标记文字下划线；
同样也是用来标记文字加粗的标记；
同样也是用来标记文字斜体的标记；
用来标记文字下标显示；
用来标记文字上标显示。
标签
用途
~
标题用
段落用
换行用
预先格式化标签
、、、、、 、
用于对文本应用各种格式，如粗体、斜体、下划线、下标、上标等
字体标签
列表用
水平线标签
制作表格时会用到一下
表格是通过
表格大小关键字
Width
表格的宽度，可以用像素或者百分比表示
Height
表格的高度，可以用像素或者百分比表示
Align
表格在页面的水平对齐情况
Bgcolor
表格的背景颜色
Border
表格的边框粗细（像素），可以设置为0
Bordercolor
表格的边框颜色
Cellspacing
单元格之间的间距
Cellpadding
表格内内容与单元格之间的间距
最后来说一下PHP中单引号和双引号的分别：
1， 字符串 可以用单引号活双引号括起来 没有长度的限制 但使用双引号的字符串具有更强的能力 例如能识别字符串中的变量 识别更多的转义字符：
echo'简单的表示
';
$i=10;
echo'我能识别这个变量：$i';
?>
如果使用双引号 显示的结果是 我能识别这个变量：10
如果使用的单引号 显示的结果 我能识别这个变量：$ia
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