rtrim函数去掉最后一个字符:<?php
$hcbp = '11|22|33|ggg|hhh|';
$hcbp = rtrim($hcbp,'|');
echo $hcbp;
rtrim函数去掉最后一个字符:
<?php $hcbp = '11|22|33|ggg|hhh|'; $hcbp = rtrim($hcbp,'|'); echo $hcbp; ?>
过滤html
$gc = htmlspecialchars($_GET['gc']); $q=trim(strip_tags($_GET['gc']));
检查变量是否设置
isset($_POST['all_del'])
求字符串长度
strlen($_POST['Password'])
定义全局变量
global $obj;
写入文件
file_put_contents ('hhhhhhh.php', "<?php \n".$tmxt."\n?>");
编码转换
$vtim = iconv("gbk","utf-8",$sdtm);
秒数转时间格式
/*$sec=秒*/ function out($sec){ $s = $sec%60; $m = floor($sec/60); $o = floor($m/60); //$d = floor($m/24);天 if(strlen($s)<2){ $s = '0'.$s; } if(strlen($m)<2){ $m = '0'.$m; } if(strlen($o)<2){ $o = '0'.$o; } return $m.":".$s; }
包含文件
require_once 'kkkkk.php';
设置COKKIE
setcookie('lp','lsjz',time()+3600); //重定向 header('Location: ction/admin.php');
获取时间
date_default_timezone_set('Asia/Shanghai');///时区 $nyrg = date('Y-m-d');/////当前时间 $nyrs = date('Y-m-d H:i:s');/////当前时间 $nyrh = date('YmdH');/////当前时间
判断字符串是否包含子串
ereg("kkkk",$psrc)
替换
$zgq = str_replace("kkkkk","",$zgq);
分割字符串
$riom = explode(":",$taim);
编码解码
//解码 urldecode($titl); //编码 urlencode($titl);
序列化
serialize($yr)
反序列化
$fat = unserialize($Value);
操作assess数据库
/*列出数据表--$cenetr表,$zhixni类型,$ziduan字段,号间隔,$tiaojian条件或数据,号间隔,$uptojn 补充ID=ID*/ function shujbiolje($cenetr,$zhixni,$ziduan,$tiaojian,$uptojn){ global $rs,$conn; //$tiaojian = iconv('UTF-8', 'GB2312', $tiaojian); //读取第一条记录 if($zhixni == 'dytjl'){ return $conn->Execute('select top 1 * from '.$cenetr.' order by id'); } //读取最后一条记录 if($zhixni == 'zytjl'){ return $conn->Execute('select top 1 * from '.$cenetr.' order by id desc'); } //计算记录总数 if($zhixni == 'jsjl'){ return $conn->Execute('select count(*) as stqm from '.$cenetr); //return $conn->Execute('select count(*) from '.$cenetr); //"select COUNT(*;字段名) as 别名 from 数据表 where 条件表达式" } //倒序 if($zhixni == 'dxlc'){ return $conn->Execute('SELECT * FROM '.$cenetr.' order by id desc'); } //正序 if($zhixni == 'zxlc'){ return $conn->Execute('SELECT * FROM '.$cenetr); } //正序数目列出 if($zhixni == 'sumlc'){ $sql="select id from ".$cenetr." where limit ".$tiaojian.",".$uptojn; return $conn->Execute($sql); } //条件列出 if($zhixni == 'ygtjlc'){ $sql="select * from ".$cenetr." where ".$ziduan."='".$tiaojian."'"; return $conn->Execute($sql); } //ID条件列出 if($zhixni == 'idtjlc'){ $sql="select * from ".$cenetr." where ".$ziduan."=".$tiaojian; return $conn->Execute($sql); } //多个条件列出 if($zhixni == 'dgtjlc'){ $zidary = explode(",",$ziduan); $tojary = explode(",",$tiaojian); $sql = "select * from ".$cenetr." where "; for($x = 0; $x < count($zidary); $x++){ $sql .= $zidary[$x]."='".$tojary[$x]."'"."and "; } $andary = rtrim($sql,"and "); //$sql="select * from ".$cenetr." where ".$zidary[0]."='".$usyhm."'"."and ".$zidary[1]."='".$pwmm."'"; return $conn->Execute($andary); } //列出重复只取一条 if($zhixni == 'cfqytjlc'){ $sql="select distinct ".$ziduan." from ".$cenetr; //select distinct 字段 from 表 return $conn->Execute($sql); } //列出前N条 if($zhixni == 'lcqst'){ $sql="select top ".$uptojn." from ".$cenetr; //select top 10 from 表 order by 字段 desc return $conn->Execute($sql); } //列出后N条 if($zhixni == 'lchst'){ //$sql="select top ".$uptojn." from ".$cenetr." order by id desc"; $sql="select top 10 * from ".$cenetr." where id"; //select top 10 * from table1 where //select top 10 from 表 order by 字段 desc return $conn->Execute($sql); } //插入 if($zhixni == 'crsj'){ $zidary = explode(",",$ziduan); $tojary = explode(",",$tiaojian); $sql = "insert into ".$cenetr." "; for($x = 0; $x < count($zidary); $x++){ $zdu .= $zidary[$x].','; $zhi .= "'".$tojary[$x]."'".','; } $zdary = rtrim($zdu,","); $ziary = rtrim($zhi,","); $sql .= "(".$zdary.") values (".$ziary.")"; //$sql="insert into contents (name,content) values ('$name','$content')"; return $conn->Execute($sql); } //删除 if($zhixni == 'del'){ $sql="delete from ".$cenetr." where ".$ziduan."=".$tiaojian; return $conn->Execute($sql); } //更新 if($zhixni == 'upda'){ $zidary = explode(",",$ziduan); $tojary = explode("|l|",$tiaojian); $sql = "update ".$cenetr." set "; for($x = 0; $x < count($zidary); $x++){ $yuj .= $zidary[$x]."='".$tojary[$x]."'".","; } $yjary = rtrim($yuj,","); $sql .= $yjary." where id=".$uptojn; //$sql="update contents set content='".$_POST['post_contents']."',name='".$_POST['name']."' where id=".$_POST['id']; return $conn->Execute($sql); } }
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