This article mainly introduces the PHP import progress bar class, which has a certain reference value. Now I share it with everyone. Friends in need can refer to it.
I am doing a customer import recently. Function, an imported progress bar class compiled:
<?php /** * @File name: Loading.php * @Author: jiumi.jin * @Create time: 10/11/2012 * @Main function: loading */ class Loading { private $width = 500; private $total = 0; private $start_time; private $faileLines = array(); private $faileCounter = 0; /** * 构造 * @param 进度条长度 $width * @param 要处理的数据长度 $length */ public function __construct($param){ ob_start(); //$this->width = $width; $this->total = $param['length']; $this->start_time = time(); ob_end_clean(); } /** * 执行进度跟踪 * @param $num 执行的数据点,这个数字应该是0 到 数据的总长度 * @return bool */ public function run($num){ $successNum = $num - $this->faileCounter; $percent = number_format($num / $this->total * 100,2) . '%'; echo "<script>updatePercent('$successNum',$this->faileCounter,'$percent');</script>"; print str_pad("",100000); ob_flush(); return true; } /** * 占用内存跟踪 * @param $i 进度 * @param $progress_mem 占用内存 * @return bool */ public function run_mem($i,$progress_mem){ echo "<script>showMem($i,$progress_mem);</script>"; print str_pad("",100000); ob_flush(); return true; } /** * 设置出错的点 * 例如导入excel的时候,有不符合模板规范的行数可以在这里设置 * @param $line 错误行数 * @param $errMes 错误信息 */ public function setFaileLine($line,$errMes){ $line = intval($line); if ($line != 0) { $this->faileCounter++; $this->faile = true; $this->faileLines[$this->faileCounter]['line'] = $line; $this->faileLines[$this->faileCounter]['errMessage'] = $errMes; echo "<script>showErr('".$this->getFaileLine()."');</script>"; print str_pad("",100000); ob_flush(); return true; } } public function getFaileCounter(){ return $this->faileCounter; } /** * 获取出错的点 * * @return string $html */ public function getFaileLine(){ $html = ''; if(!empty($this->faileLines)){ foreach($this->faileLines as $failline){ $html .= '错误位置:'.$failline['line'].', 错误信息:'.$failline['errMessage'].'<br/>'; } }else{ $html .= '没有错误信息'; } return $html; } /** * echo出进度条的html页面和js函数 * 应该在实例化类后立刻执行此方法,否则会失败 * * @return unknown */ public function createHtml(){ echo "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\" \"http://www.w3.org/TR/xhtml1/DTD/transitional.dtd\"> <html> <head> <script> function updatePercent(have_process,errCount,percent){ document.getElementById('msg').innerHTML = '成功处理了 '+have_process+' 条数据'; document.getElementById('errMsg').innerHTML = '失败 '+errCount+' 条数据'; document.getElementById('progress').style.width = percent; document.getElementById('percent').innerHTML = percent; if(document.getElementById('progress').style.width == '100%'){ document.getElementById('percent').innerHTML = '处理完毕!'; stop(); } } function showErr(msg){ document.getElementById('allErr').innerHTML = msg; } //计时 var CallTimeLen = \"0\"; var timer1 = null; function start(){ var hour=\"0\"; var minute=\"0\"; var second=\"0\"; CallTimeLen = parseInt(CallTimeLen)+1; hour = parseInt(CallTimeLen/3600); minute = parseInt(CallTimeLen/60); second = CallTimeLen%60; document.getElementById('time_h').innerHTML = hour; document.getElementById('time_m').innerHTML = minute; document.getElementById('time_s').innerHTML = second; window.timer1 = window.setTimeout(\"start()\",1000); } setTimeout(\"start()\",0); function stop(){ clearTimeout(window.timer1); } function showMem(i,progress){ document.getElementById('showM').innerHTML = '_____'+i+': '+progress; } </script> </head> <body> <p style=\"margin:0 auto; margin-top:4px; margin-bottom:0; padding: 8px; padding-bottom:0; border: 1px solid gray; background: #EAEAEA; width:".$this->width."px\"> <p><font color=\"gray\"><span style=\"font-size:12px;\">此操作需要等待一段时间,在执行完毕之前,请不要关闭此页面</span></font></p> <p style=\"padding: 0; background-color: white; border: 1px solid navy; width:".$this->width."px\"> <p id=\"progress\" style=\"padding: 0; background-color: #FFCC66; border: 0; width: 0px; text-align: center; height: 16px\"></p> </p> <p id=\"msg\" style=\"font-size:12px;\"></p> <p id=\"errMsg\" style=\"font-size:12px;\"></p> 已用时:<span id=\"time_h\"> </span>时 <span id=\"time_m\"> </span>分 <span id=\"time_s\"> </span>秒 <p id=\"showM\" style=\"font-size:12px;\"></p> <p id=\"percent\" style=\"position: relative; top: -32px; text-align: center; font-weight: bold; font-size: 8pt;\">0%</p> </p> <p id=\"allErr\"> </p> <body> </html>"; return true; } }
CI framework call:
$this->load->library('loading',array('length'=>$totle)); //加载进度条类,这是CI框架 $this->loading->createHtml(); //$start_mem = memory_get_usage(); foreach($customers as $key=>$customer){ $return = $this->insert_import($customer); if($return != 1){ $this->loading->setFaileLine($key+1,$return); //记录错误 }else{ $this->loading->run($key+1); //成功进度条 } //$progress_mem = memory_get_usage(); //$this->loading->run_mem($key,$progress_mem-$start_mem); //测试查看内存使用情况的 }
The above is the entire content of this article, I hope it will be helpful to everyone Learning is helpful. For more related content, please pay attention to the PHP Chinese website!
Related recommendations:
php method of grabbing web content and images
php method of packaging zip image downloads
php web request security processing
The above is the detailed content of PHP import progress bar class. For more information, please follow other related articles on the PHP Chinese website!

APHPDependencyInjectionContainerisatoolthatmanagesclassdependencies,enhancingcodemodularity,testability,andmaintainability.Itactsasacentralhubforcreatingandinjectingdependencies,thusreducingtightcouplingandeasingunittesting.

Select DependencyInjection (DI) for large applications, ServiceLocator is suitable for small projects or prototypes. 1) DI improves the testability and modularity of the code through constructor injection. 2) ServiceLocator obtains services through center registration, which is convenient but may lead to an increase in code coupling.

PHPapplicationscanbeoptimizedforspeedandefficiencyby:1)enablingopcacheinphp.ini,2)usingpreparedstatementswithPDOfordatabasequeries,3)replacingloopswitharray_filterandarray_mapfordataprocessing,4)configuringNginxasareverseproxy,5)implementingcachingwi

PHPemailvalidationinvolvesthreesteps:1)Formatvalidationusingregularexpressionstochecktheemailformat;2)DNSvalidationtoensurethedomainhasavalidMXrecord;3)SMTPvalidation,themostthoroughmethod,whichchecksifthemailboxexistsbyconnectingtotheSMTPserver.Impl

TomakePHPapplicationsfaster,followthesesteps:1)UseOpcodeCachinglikeOPcachetostoreprecompiledscriptbytecode.2)MinimizeDatabaseQueriesbyusingquerycachingandefficientindexing.3)LeveragePHP7 Featuresforbettercodeefficiency.4)ImplementCachingStrategiessuc

ToimprovePHPapplicationspeed,followthesesteps:1)EnableopcodecachingwithAPCutoreducescriptexecutiontime.2)ImplementdatabasequerycachingusingPDOtominimizedatabasehits.3)UseHTTP/2tomultiplexrequestsandreduceconnectionoverhead.4)Limitsessionusagebyclosin

Dependency injection (DI) significantly improves the testability of PHP code by explicitly transitive dependencies. 1) DI decoupling classes and specific implementations make testing and maintenance more flexible. 2) Among the three types, the constructor injects explicit expression dependencies to keep the state consistent. 3) Use DI containers to manage complex dependencies to improve code quality and development efficiency.

DatabasequeryoptimizationinPHPinvolvesseveralstrategiestoenhanceperformance.1)Selectonlynecessarycolumnstoreducedatatransfer.2)Useindexingtospeedupdataretrieval.3)Implementquerycachingtostoreresultsoffrequentqueries.4)Utilizepreparedstatementsforeffi


Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Dreamweaver CS6
Visual web development tools

WebStorm Mac version
Useful JavaScript development tools

PhpStorm Mac version
The latest (2018.2.1) professional PHP integrated development tool

mPDF
mPDF is a PHP library that can generate PDF files from UTF-8 encoded HTML. The original author, Ian Back, wrote mPDF to output PDF files "on the fly" from his website and handle different languages. It is slower than original scripts like HTML2FPDF and produces larger files when using Unicode fonts, but supports CSS styles etc. and has a lot of enhancements. Supports almost all languages, including RTL (Arabic and Hebrew) and CJK (Chinese, Japanese and Korean). Supports nested block-level elements (such as P, DIV),
