php代码
ETsale3.0是采用php+mysql+smarty+jquery开发的一个很小很小的管理程序,适用于中小企业对产品销售后的报表管理以及客户资料和联通记录管理。由于采用smarty做模板,所以更方便修改外观以适用于自己的公司。程序加入简单的srm管理系统安装方法:1、以二进制上传所有文件到服务器目录2、修改cache,templates_c,目录为可写(0777)3、把include\conf
<?php
/**
* 写入数据
* @param [string] $path [文件路径]
* @param [string] $mode [文件打开模式]
* @param [string] $data [数据]
* @return [bool]
*/
function writeData($path, $mode, $data){
$fp = fopen($path, $mode);
$retries = 0;
$max_retries = 100;
do {
if ($retries > 0) {
usleep(rand(1, 10000));
}
$retries += 1;
}while (!flock($fp, LOCK_EX) and $retries <= $max_retries);
if ($retries == $max_retries) {
return false;
}
fwrite($fp, $data."\r\n");
flock($fp, LOCK_UN);
fclose($fp);
return true;
}
/**
* 读数据
* @param [string] $path [文件路径]
* @param [string] $mode [文件打开模式]
* @return string
*/
function readData($path,$mode){
$fp = fopen($path, $mode);
$retries = 0;
$max_retries = 100;
do {
if ($retries > 0) {
usleep(rand(1, 10000));
}
$retries += 1;
}while (!flock($fp, LOCK_SH) and $retries <= $max_retries);
if ($retries == $max_retries) {
return false;
}
$contents = "";
while (!feof($fp)) {
$contents .= fread($fp, 8192);
}
flock($fp, LOCK_UN);
fclose($fp);
return $contents;
}
writeData('D:/webServer/demo.txt','a+','this is a demo');
echo readData('D:/webServer','r+');










