===========计算页面执行时间============
在PHP网页的开头加入以下
<?
$time_start = getmicrotime();
function getmicrotime()
{
list($usec, $sec) = explode(" ",microtime());
return ((float)$usec + (float)$sec);
}
?>
然后到最后加入以下代码
<?
$time_end = getmicrotime();
printf ("[页面执行时间: %.2f毫秒]\n\n",($time_end - $time_start)*1000);
?>
============php和access链接===========
<? $dbc = new COM("ADODB.Connection"); $dbc->Open("driver=microsoft access driver (*.mdb);dbq=D:\PHP\PHPJJXX\db1.mdb"); $rs = $dbc->Execute("select * from 2"); $i = 0; while (!$rs->EOF) { $i += 1; $fld0 = $rs->Fields(0); $fld1 = $rs->Fields(1); $fld2 = $rs->Fields(2); print "$fld0->value $fld1->value $fld2->value<BR>"; $rs->MoveNext(); } $rs->Close(); ?> =======PHP中比较值得推荐的数据验证的类==========
<?php
class checker{ // 函数定义 var $array_data=""; //要验证的数组数据 var $var_key=""; //当前要验证的数据的key var $var_value=""; //当前要验证的数据的值 var $is_empty=""; //要验证的值可以为空 var $array_info=""; //提示信息收集 var $array_errors=array(); //错误信息收集
//--------------------->构造函数<------------ function checker($date){ $this->array_data=$date; }
//--------------------->数据检验函数<------------- function check($array_datas){ foreach($array_datas as $value_key => $value_v){ $temp1=explode('|',$value_v); if($temp1[0]=="i_empty" and empty($this->array_data[$value_key])){ ; }else{ foreach($temp1 as $temp_key => $value_con){
//$data_temp=$this->array_data; //var_dump($data_temp['birthday']); //echo "--".$value_key."--<br>"; $this->var_key=$value_key; $this->var_value=$this->array_data[$value_key];
$temp2=explode(':',$value_con);
switch(count($temp2)){ case 0: $this->array_errors[$this->var_key]="此值的验证请求不存在"; break; case 1: //如果用户没有指定验证动作 if(empty($temp2[0])){ $this->array_errors[$this->var_key]="此值的验证请求不存在"; break; }else{ $this->$temp2[0](); //如果返回值为非,就不用进行下一步验证 break; } case 2: $this->$temp2[0]($temp2[1]); break; case 3: $this->$temp2[0]($temp2[1],$temp2[2]); break; } } } } } function i_empty(){ $this->is_empty=1; //这个值没什么用,只是说明要验证的值可以是空值 }
//日期数据、邮件地址、浮点数据、整数、IP地址、字符串、最大值、最小值、字符串长度、域名、URL //-------------------->日期验证-------------------- function i_date(){ //约定格式:2000-02-01或者:2000-5-4 if (!eregi("^[1-9][0-9][0-9][0-9]-[0-9]+-[0-9]+$", $this->var_value)) { $this->array_errors[$this->var_key]="日期格式错误"; return false; } $time = strtotime($this->var_value); if ($time === -1) { $this->array_errors[$this->var_key]="日期格式错误"; return false; } $time_e = explode('-', $this->var_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]) { $this->array_errors[$this->var_key]="日期格式错误"; return false; } } return true; } //-------------------->时间验证-------------------- function i_time() { if (!eregi('^[0-2][0-3](:[0-5][0-9]){2}$', $this->var_value)) { $this->array_errors[$this->var_key]="时间格式错误"; return false; } return true; } //-------------------->email验证-------------------- function i_email(){ if(!eregi("^[0-9a-z~'!#$%&_-]([.]?[0-9a-z~!#$%&_-])*" . "@[0-9a-z~!#$%&_-]([.]?[0-9a-z~!#$%&_-])*$", $this->var_value)) $this->array_errors[$this->var_key]="邮件格式错误<br>"; //echo $this->var_value; return true; } //-------------------->浮点数验证-------------------- function i_float(){ //if(!is_float($this->var_value)) if(!ereg("^[1-9][0-9]?\.([0-9])+$",$this->var_value)) $this->array_errors[$this->var_key]="这不是一个小数"; } //-------------------->字符串验证-------------------- function i_string(){ if(empty($this->var_value)) //允许为空 return true; if(!is_string($this->var_value)) $this->array_errors[$this->var_key]="这不是一个字符串"; return true; } //-------------------->字符串长度验证-------------------- function len($minv,$maxv=-1){ $len = strlen($this->var_value); if($len==0){ $this->array_errors[$this->var_key]="不能为空值"; return false; } if ($len < $minv) { $this->array_errors[$this->var_key]="输入的串太短了"; return false; } if ($maxv != -1) { if ($len > $maxv) { $this->array_errors[$this->var_key]="输入的串太长了"; return false; } } return true; } //-------------------->整数验证-------------------- function i_int(){ if(!ereg("^[0-9]*$",$this->var_value)) $this->array_errors[$this->var_key]="这不是一个整数"; } //-------------------->IP地址验证-------------------- function i_ip(){ if(!ereg("^[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}$", $this->var_value)){ $this->array_errors[$this->var_key]="错误的IP地址"; }else{ //每个不大于255 $array_temp=preg_split("/\./",$this->var_value); foreach($array_temp as $ip_value){ if((int)$ip_value >255) $this->array_errors[$this->var_key]="错误的IP地址"; } } return true; } //-------------------->最大值验证-------------------- function i_max($maxv){ if($this->var_value >= $maxv){ $this->array_errors[$this->var_key]="数据值太大"; return false; } return true; } //-------------------->最小值验证-------------------- function i_min($minv){ if($this->var_value <= $minv){ $this->array_errors[$this->var_key]="数据值太小"; return false; } return true; } //-------------------->域名验证-------------------- function i_domain() { if(!eregi("^@([0-9a-z\-_]+\.)+[0-9a-z\-_]+$", $this->var_value)) $this->array_errors[$this->var_key]="错误的域名"; return eregi("^@([0-9a-z\-_]+\.)+[0-9a-z\-_]+$", $this->var_value); } //-------------------->URL验证-------------------- function i_url(){ if(!eregi('^(http://|https://){1}[a-z0-9]+(\.[a-z0-9]+)+$' , $this->var_value)) $this->array_errors[$this->var_key]="错误的WEB地址"; return true; } //-------------------->自定义正则校验-------------------- function check_own($user_pattern){ //自定义校验。出错返回false,匹配返回1,不匹配返回0 $tempvar=preg_match($user_pattern,$this->var_value); if($tempvar!=1) $this->array_errors[$this->var_key]="数据不合法"; }
######################### 类 the end ################################ }
//<----------------------------作用示例---------------------> /* //注意:如果允许一个值为空,则在验证数组前加上i_empty就行了。 //:前面第一个是验证函数,后面的都是参数 $rule_list = array( 'temp' =>'check_own:"^@([0-9a-z\-_]+\.)+[0-9a-z\-_]+$"', 'time' => 'i_time', 'fload' => 'i_float|i_min:1|i_max:10.10|len:0:20', 'ipadr' => 'i_ip', 'url' =>'i_url', 'birthday' => 'i_date', 'email' => 'i_email|len:1:128', 'gender' => 'i_int|i_min:1|i_max:20', 'city' => 'i_string|len:1:32');
$rule_date = array( 'temp' => '@sina.com', 'time' => '23:59:00', 'fload' => '10.0', 'ipadr' => '251.255.1.1', 'url' => 'Https://www.gg', 'birthday' => '2004-5-4', 'gender' => '15', 'email' => '[email protected]', 'city' => 'Guangzhou');
$gg=new checker($rule_date); $gg->check($rule_list);
print_r($gg->array_errors);
*/ ?>

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