php用于验证数据的工具程序(页 1) - 网站设计 - 设计动量论坛

sogood 发表于 2007-3-24 11:56

php用于验证数据的工具程序

<?php4A'P(Nk BA'{;T

// @author Liao Yu Lei <[email]daut@dualface.com[/email]>;
5m)SS7^^?aGnr
/**,ns5AL?j2nf%T"Be)_
* 验证规则由两部分组成：0rY+[)O*BG
* m"dTFl1CL!W[
* 首先是数据类型：)Ft |6g/oV
*
* NUMBER 数字m#_7yU/L3S
* INT 整数0hE3C}a3Ab*c*L+E
* FLOAT 浮点数#}sxe)jT6E
* ASCII ASCII字符串
* EMAIL Email地址
* DATE 日期
* TIME 时间/rQ%w JQ
* IPv4 IPv4地址DiA}$n9nf`\^
* OCTAL 八进制数值2p8GX|V8Kt.V2or`
* BINARY 二进制数值,@x^ H*U2i
* HEX 十六进制数值
* DOMAIN Internet域名Q%?!G0H,o"dn&T[
* ANY 任意类型（等同于字符串）g6n-ZlyU
* STRING 字符串*O"^VH+_J
* 如果类型字符串前面有一个?，表示这个数据可以是空值
*3F ef'Z J5a
* 然后要用于验证的验证函数：
* 8}NU;T&g3dTT"e-I
* min 最小值检查0V?6FZ*WN
* max 最大值检查 Sv?#ld-|;]z
* len 有效长度检查
* len(最小长度，[最大长度])
* equ 等于
* equ(值)
* equitem 等于另一个项目的值
* equitem(项目名) cm!AtNI,Nq_
* exist 检查项目是否存在c'P,t{T
* exist(项目名称)
* not 上述函数返回结果取反&p%i z7t}2OWH
* not(exist(项目名称))
*
* 验证方法：#s-{!z3x i[
* 1. 首先检查数据类型，如果未通过则不再验证函数，直接返回false。(wm x)DR\`
* 如果数据类型字符串前面有?，那么当值为空时返回true。%YkW!C;|7OVs
* 2. 接着验证函数，从左到右，如果验证过程中有函数返回false，
* 则不再验证剩下的函数，直接返回false。 C F3? J_
* 3. 函数允许嵌套，但除了not函数，其他函数嵌套结果未定义。o5pqF2R;OV-^J
*
* 示例："p"W o[dRj)oH
* $c = & new Checker();-^On^*R2Ss6o
*
* $c->;check($_POST['title'], 'ANY', 'len(1,32)'); wkXe/w b:k
* 验证$_POST['title']的长度是否在1和32之间。3R:KzilZ2u2k
*E6}2H&Q~U
* $c->;check($_POST['begin_date'], 'DATE', 'min("2004-1-1");max("2004-1-4")');^QF-g(RB&J
* 验证$_POST['begin_date']是否是日期数据，并且最早不早于2004-1-1，
* 最晚不晚于2004-1-4*DS:qo'X9H
*
* $c->;check($_POST['password'], 'ANY', 'len(1,32);equitem("confirm_password")');
* 验证$_POST['password']是否是字符串，并且长度位于1到32个字符之间。
* 最后还要是否和$_POST['confirm_password']相等
*
* $c->;check($_POST['created_time'], 'TIME', 'not(exist("remove_time"))');
* 验证$_POST['created_time']是否是时间，其次检查$_POST['remove_time']是否不存在。,?:|]4t ~G:]
*/f,W:baR5a,WNc5GB&W

define ('VT_INT', 1);-pC:xI]+qAmn{
define ('VT_FLOAT', 2);
define ('VT_ASCII', 3);
define ('VT_EMAIL', 4);"VA)b(eu,sj(?d ?5m
define ('VT_DATE', 5);
define ('VT_TIME', 6);
define ('VT_IPv4', 7);qDsI;T'E:@i }e
define ('VT_OCTAL', 8);.KNv\7E)\
define ('VT_BINARY', 9);
define ('VT_HEX', 10);
define ('VT_DOMAIN', 11);
define ('VT_ANY', 12);#S%vG%uD oZ
define ('VT_STRING', 13);
ZuSF-DRL+j,Gh3t
class Checker5`$Ws$[bn)n)W
{Q)j ?0I,y0EdB2M
 var $_data = null;
 var $_current_value = null;,|:C7P`-l3Y_Z_B)]
 var $_value_type = null;
 var $_result = false;
 tj1a-}:h@$`R
 // 函数定义
 function _min($min) {'Gp!R C*y~2l_ QI@\
 switch ($this->;_value_type) {
 case VT_DATE:
 case VT_TIME:
 return strtotime($this->;_current_value) >;= strtotime($min);
 case VT_OCTAL:SS5a+x1W
 case VT_BINARY:
 case VT_HEX:,u)_)w}/KR`$s
 return false;
 return strcasecmp($this->;_current_value, $min) >;= 0;%Xr4@A(_{
 default:
 return $this->;_current_value >;= $min;WR avJ5A
 }j@'Ymg5R4b
 }

 function _max($max) {
 switch ($this->;_value_type) {;@;fz@`j6c]&J
 case VT_DATE:.b H ov%sE
 case VT_TIME: t9R7r rwe
 return strtotime($this->;_current_value) <= strtotime($max);
 case VT_OCTAL:.x~H_E
 case VT_BINARY:kB*xtII"O
 case VT_HEX:
 return false;
 return strcasecmp($this->;_current_value, $max) <= 0;
 default:
 return $this->;_current_value <= $max;s,fIrp!g
 }
 }VOA"t!gT\[V

 function _len($min, $max = -1) {
 $len = strlen($this->;_current_value);
 if ($len < $min) {
 return false;
 }
 if ($max != -1) {? `1x w5q E
 if ($len >; $max) {
 return false;
 }
 }
 return true;h"WEaFX8V%M
 }
 [j+Pe&S\O
 function _equ($calue) {
 return $this->;_current_value === $calue;*} ^ x#nL
 }

 function _equitem($key) {5m L+d!p~i
 return $this->;_current_value === $this->;_data[$key];%OkIIvEow#n
 }

 function _exist($key) {eBG6e2Ifk/X
 return isset($this->;_data[$key]);,x8F w"~T;e7n
 }z4VYXvx$W

 function _not($calue) {c l;ek0g-O&B2c
 return !$calue;
 }[)i:BO7K4c
 +m/TYK-\i
 // 数据类型检查
 function _is_assic($value) {0Tg4e%W#hH'U
 $len = strlen($value);
 for ($i = 0; $i < $len; $i++) {9OEf0kulFE
 $ord = ord(substr($value, $i, 1));o@Cv2nv*w-T,rvA
 if ($ord >; 127) {zZzO0y2u/G$u o-}7P
 return false;
 }
 }ns?(okk
 return true;
 }

 function _is_email($value) {/]Y,Z ]@XA4P
 return eregi("^[0-9a-z]+@([0-9a-z]+.)+[0-9a-z]+$", $value);!cE$e;Q7p6w.yR
 }

 function _is_date($value) {lKb"Glz
 if (!eregi("^[1-9][0-9][0-9][0-9]-[0-9]+-[0-9]+$", $value)) {
 return false;
 } W4aN$JH\B
 $time = strtotime($value);#KR)P&Xl3Ie1dN
 if ($time === -1) {
 return false;2H8E1u`DH9n
 },`gJgntAW:l:]
 $time_e = explode('-', $value);
 $time_ex = explode('-', Date('Y-m-d', $time));
 for ($i = 0; $i < count($time_e); $i++) {
 if ((int)$time_e[$i] != (int)$time_ex[$i]) {
 return false;
 } }HJx5O5x;|#^
 }/I*D/\/?8nT
 return true;
 } @m2T^F"o&?
,? u!K6u WrK
 function _is_time($value) {
 if (!eregi("^[0-9]{1,2}(:[0-9]{1,2}){1,2}$", $value)) {wRWc6P
 return false;po*TG8y VBC
 }
 $time = strtotime($value);
 if ($time === -1) {:f]8G a2vJ5ad-W$vo
 return false;-C_7rt+`GX(m)]
 }
 $time_e = explode(':', $value);
 $time_ex = explode(':', Date('H:i:s', $time));9Ui+Oup/Dms
 for ($i = 0; $i < count($time_e); $i++) {
 if ((int)$time_e[$i] != (int)$time_ex[$i]) {}TZii1nV${,wN
 return false;+R mFuP
 }
 }
 return true;
 }

 function _is_ipv4($value) {'c2Pk5j s
 return ereg("^[0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3}$", $value);"g4gdlK#jL
 }
H[4sQ5VB-[V6W6E
 function _is_octal($value) {
 return ereg("^0[1-7]*[0-7]+$", $value);
 })k%p'Mq3A,}X*E a

 function _is_binary($value) {
 return ereg("^[01]+$", $value);
 }R,uU zVa8q@D
$g:DGT5F*~h
 function _is_hex($value) {%x u*p6a\}1c$B
 return eregi("^0x[0-9a-f]+$", $value);/P+MYU,_EHK
 }
*kD9{cF S)sl
 function _is_domain($value) {
 return eregi("^@([0-9a-z-_]+.)+[0-9a-z-_]+$", $value);
 };Z5w FG7c6l r\ n6ah
 f,e8n]R%N
 function _is_int($value) {x.B4DT)t:Jk:k4q.H
 return ereg("^[0-9]+$", $value);
 }n.SV8@R(J t
 hLs9_?0a @@A
 function _is_float($value) { i([%@ e??5bw4C
 return ereg("^[0-9]+\.[0-9]+$", $value);
 }
Mp)K8LFi:R+VM
 /**2_gHH#KYe
 * @return Checker
 * @desc 构造一个 Checker 对象 A&]4}N6yeD
 */GgQF^$sl)V
 function Checker(& $data) {
 $this->;_data = & $data;^}j!}ejf)n2{
 } f'Z+NC2o6a~oU
 z.p }T+Uv
 /**
 * @retrun boolean
 * @param string $key
 * @param string $rule#f]%Y _+l x
 * @desc 检查数组指定键的值是否有效@;j-D3h*lAv
 */
 function checkWithKey($key, $rule = 'STRING') {?C*q P H4U
 if (!isset($this->;_data[$key])) {8[5B I:JR.A%FB+~
 return $this->;check('', $rule);
 }/cls'A*i3]|]
 return $this->;check($this->;_data[$key], $rule);
 }
.Jj(m*zi
 /**
 * @return booleanzyy.qQ~ _2m
 * @param string $value1AAW3S_z[
 * @param string $rule
 * @desc 检查指定数据是否有效
 */W)r.J3~ [
 function check($value, $rule = 'STRING') {+V-\^KI
 $pos = strpos($rule, ';');QY*@9P%o1b8q1X
 if ($pos === false) {
 $type = $rule;!fn?:R3r,z
 $rule = '';
 } else {
 $type = substr($rule, 0, $pos);4ponVb:o6P-}D
 $rule = substr($rule, $pos + 1);
 }@)M;Hw9wN.ZU

 // 检查是否允许NULL值/kl0rCV6jd!Q
 if (substr($type, 0, 1) == '?') {
 if (empty($value)) {
 return true;
 }
 $type = substr($type, 1);duLq Z/f0Z
 }
 // 检查数据类型
 if (!$this->;isType($value, $type)) {4xcLxcDe;v`
 return false;M:dp/c b ~A_8x
 }
 // 检查数据是否符合规则?+J|:C[C0vw._l
 if (empty($rule)) {
 return true;
 }
 $rule_list = explode(';', $rule);ramU aa
 foreach ($rule_list as $rule_item) {
 if (!$this->;runRule($value, $rule_item)) {
 return false;L]M2?\:X
 }n5BS)PX9Md mdx~
 }
 return true;X$h3n?O@!f)w
 }

 /**0rg&IS-zWY[x
 * @return boolean
 * @param string $value
 * @param string $type
 * @desc 检查数据类型-];U-OI}
 */
 function isType($value, $type) {,c N&{kJ
 $type = strtoupper($type);:zT`lo
 switch ($type) {${(CPHl+QP^g
 case 'NUMBER': yF])pury5t&C
 case 'INT':T.cm)TC8OK~
 $this->;_value_type = VT_INT;
 return $this->;_is_int($value);
 case 'FLOAT':bNmxi_
 $this->;_value_type = VT_FLOAT;
 return $this->;_is_float($value);1J1s)@EK)D)x(}
 case 'ASCII':
 $this->;_value_type = VT_ASCII;*O1?({r7M\OX ^
 return $this->;_is_assic($value);
 case 'EMAIL': P7qJ\w*I
 $this->;_value_type = VT_EMAIL;
 return $this->;_is_email($value);
 case 'DATE':
 $this->;_value_type = VT_DATE;
 return $this->;_is_date($value);@ z:p E1zjo8L
 case 'TIME':*Xq [g)R2w'f
 $this->;_value_type = VT_TIME;
 return $this->;_is_time($value);
 case 'IPV4':%Y V%p6S$z\UX;d
 $this->;_value_type = VT_IPv4;
 return $this->;_is_ipv4($value);u2\0fDY-t$Ad
 case 'OCTAL':T Ydyov
 $this->;_value_type = VT_OCTAL;5x'nuid:h3~0Yz
 return $this->;_is_octal($value);
 case 'BINARY':
 $this->;_value_type = VT_BINARY;
 return $this->;_is_binary($value);wQ3E"ys%Z3g7Rp
 case 'HEX':'lh6?p T,_
 $this->;_value_type = VT_HEX;
 return $this->;_is_hex($value);
 case 'DOMAIN':
 $this->;_value_type = VT_DOMAIN;UPt#h!@|m4S~
 return $this->;_is_domain($value);
 case 'ANY':
 $this->;_value_type = VT_ANY;q5`@N3|-I
 case 'STRING':I6Z)N?aN/}
 $this->;_value_type = VT_STRING;vzMuo0H4Vy
 return true;
 }
 }%c$Sf;A?uq
 7}l{\x2e0cJQ
 /** u@?_!N3?
 * @return boolean&b!k(rcFE/C@
 * @param string $value
 * @param string $ruleV+r8f7|TAol%eF
 * @desc 在数据上执行验证规则
 */rw;VO/VO-Q
 function runRule($value, $rule) {eky v'w'pAN|
 if (trim($rule) == '') {
 return true;J9[/lc$G+vR!q
 } _#w`Sv(D/oT
 $this->;_current_value = $value;
 $this->;_result = false;}.rx.e"g.w
 $eval_rule = '$this->;_result = ' . ereg_replace('([a-z]+)\(', '$this->;_1(', $rule) . ';';
 // echo "$value ;$value ; ;!O"Y k0Zn8{k
";
 // echo "$eval_rule: ;$eval_rule ; ;k@D*Q@%@L/j
";g]vx7FW S
 ob_start();5n1{:HbjVVF
 $eval_result = eval($eval_rule);
 ob_end_clean();
 if ($eval_result === false) {
 echo "eval failed. ;R4Zd @0~l~#|~1^fo
";
 die;6eXk&Kk\
 //throw (new Exception("规则执行失败v/t+H!_HP ]k S
$rule = $rule"));
 } else {H9c'?0hHW\s1`
 // echo "$result ;$result ; ;
";
 return $this->;_result;,q6Aa|,Ne1e{V
 }2_7j+jp5v/i
 } L-EV3uq#}~
}

?>;

sogood 发表于 2007-3-24 11:56

例子
$rule_list = array(Yjh@,WT
      'name' =>; 'STRING;len(1,32)',|*|fqv@){-K
      'gender' =>; '?INT;min(1);max(2)',
      'birthday' =>; '?DATE',T:W}S3ih ~
      'birthday_alert' =>; '?STRING;equ("1")',
      'company' =>; '?STRING;len(1,256)',NJqN`-@
      'dept' =>; '?STRING;len(1,256)',
      'headship' =>; '?STRING;len(1,64)',uA~2TeA8e
      'tel_business' =>; '?STRING;len(1,64)',@9zD$T-W
      'tel_house' =>; '?STRING;len(1,64)',
      'fax' =>; '?STRING;len(1,64)',1bD&m6}k
      'mobilephone' =>; '?STRING;len(1,64)',
      'email' =>; '?EMAIL;len(1,128)',
      'email2' =>; '?EMAIL;len(1,128)',H`{8v/P/e
      'postcode' =>; '?NUMBER;len(1,16)',
      'province' =>; '?STRING;len(1,64)',
      'country' =>; '?STRING;len(1,64)',*ea$U/N1b&c
      'address' =>; '?STRING;len(1,256)',U(W3b-i4M`D
      'city' =>; '?STRING;len(1,32)');
0~3r7e zsR_
$check = & new Checker($_POST);
foreach ($rule_list as $key =>; $rule) {*K]2b\'G~
      if (!$check->;checkWithKey($key, $rule)) {WOV8|7mfn
            $result['error_' . $key] = true; y(p*y/Y+h$D0M
      }
}Z3pY&[S]
l;Fd-tw.d`|
echo nl2br(print_r($result));

页: [1]

设计动量论坛's Archiver

php用于验证数据的工具程序