PHP惯用验证正则表达式

PHP常用验证正则表达式

数字、手机号、QQ号、Url地址合法性校验

1.验证是否为整数

<span style="color: #008080;">1</span> <span style="color: #0000ff;">function</span> isNumber(<span style="color: #800080;">$val</span><span style="color: #000000;">)</span><span style="color: #008080;">2</span> <span style="color: #000000;">    {</span><span style="color: #008080;">3</span>             <span style="color: #0000ff;">if</span>(<span style="color: #008080;">ereg</span>("^[0-9]+$", <span style="color: #800080;">$val</span><span style="color: #000000;">))</span><span style="color: #008080;">4</span>                 <span style="color: #0000ff;">return</span> <span style="color: #0000ff;">true</span><span style="color: #000000;">;</span><span style="color: #008080;">5</span>             <span style="color: #0000ff;">return</span> <span style="color: #0000ff;">false</span><span style="color: #000000;">;</span><span style="color: #008080;">6</span>      }

2.验证是否为手机号

<span style="color: #008080;">1</span> <span style="color: #0000ff;">function</span> isPhone(<span style="color: #800080;">$val</span><span style="color: #000000;">){</span><span style="color: #008080;">2</span>             <span style="color: #008080;">3</span>           <span style="color: #0000ff;">if</span> (<span style="color: #008080;">ereg</span>("^1[1-9][0-9]{9}$",<span style="color: #800080;">$val</span><span style="color: #000000;">))</span><span style="color: #008080;">4</span>           <span style="color: #0000ff;">return</span> <span style="color: #0000ff;">true</span><span style="color: #000000;">;</span><span style="color: #008080;">5</span>         <span style="color: #0000ff;">return</span> <span style="color: #0000ff;">false</span><span style="color: #000000;">;</span><span style="color: #008080;">6</span>     <span style="color: #008080;">7</span>           <span style="color: #008080;">8</span>     }

3.验证是否为有效的QQ号

<span style="color: #008080;">1</span> <span style="color: #0000ff;">function</span> isQQ(<span style="color: #800080;">$val</span><span style="color: #000000;">){</span><span style="color: #008080;">2</span>             <span style="color: #008080;">3</span>           <span style="color: #0000ff;">if</span> (<span style="color: #008080;">ereg</span>("^[1-9][0-9]{4,12}$",<span style="color: #800080;">$val</span><span style="color: #000000;">))</span><span style="color: #008080;">4</span>           <span style="color: #0000ff;">return</span> <span style="color: #0000ff;">true</span><span style="color: #000000;">;</span><span style="color: #008080;">5</span>         <span style="color: #0000ff;">return</span> <span style="color: #0000ff;">false</span><span style="color: #000000;">;</span><span style="color: #008080;">6</span>     <span style="color: #008080;">7</span>           <span style="color: #008080;">8</span>     }

4.验证是否是合法的Url地址

<span style="color: #008080;"> 1</span> <span style="color: #0000ff;">function</span> isUrl(<span style="color: #800080;">$s</span><span style="color: #000000;">)  {  </span><span style="color: #008080;"> 2</span>         <span style="color: #0000ff;">return</span> <span style="color: #008080;">preg_match</span>('/^http[s]?:\/\/'.  <span style="color: #008080;"> 3</span>             '(([0-9]{1,3}\.){3}[0-9]{1,3}'. <span style="color: #008000;">//</span><span style="color: #008000;"> IP形式的URL- 199.194.52.184  </span><span style="color: #008080;"> 4</span>             '|'. <span style="color: #008000;">//</span><span style="color: #008000;"> 允许IP和DOMAIN（域名）  </span><span style="color: #008080;"> 5</span>             '([0-9a-z_!~*\'()-]+\.)*'. <span style="color: #008000;">//</span><span style="color: #008000;"> 域名- www.  </span><span style="color: #008080;"> 6</span>             '([0-9a-z][0-9a-z-]{0,61})?[0-9a-z]\.'. <span style="color: #008000;">//</span><span style="color: #008000;"> 二级域名  </span><span style="color: #008080;"> 7</span>             '[a-z]{2,6})'.  <span style="color: #008000;">//</span><span style="color: #008000;"> first level domain- .com or .museum  </span><span style="color: #008080;"> 8</span>             '(:[0-9]{1,4})?'.  <span style="color: #008000;">//</span><span style="color: #008000;"> 端口- :80  </span><span style="color: #008080;"> 9</span>             '((\/\?)|'.  <span style="color: #008000;">//</span><span style="color: #008000;"> a slash isn't required if there is no file name  </span><span style="color: #008080;">10</span>             '(\/[0-9a-zA-Z_!~\'\(\)\[\]\.;\?:@&=\+\$,%#-\/^\*\|]*)?)$/',  <span style="color: #008080;">11</span>             <span style="color: #800080;">$s</span>) == 1<span style="color: #000000;">;  </span><span style="color: #008080;">12</span>     }

使用方式很简单，如验证手机号是否有效：

<span style="color: #800080;">$val</span>='15093691582'<span style="color: #000000;">;isPhone(</span><span style="color: #800080;">$val</span>);