Online survey program code_PHP tutorial
No database required for online polling survey php code This is an online voting system made of php + txt text files. It can complete online user survey functions without database support.
Online survey program code
//survey.php
/*
No database tutorial online poll php code
This is an online voting system made of php + txt text files. It can complete online user survey functions without database support.
*/
$data="data.txt";
$votes="survey.txt";
$dataf=file($data); /*Read the items in the survey project file*/
$file_votes=fopen($votes, "r");
$line_votes=fgets($file_votes, 255); /*Read the recorded survey results*/
fclose($file_votes);
$single_vote=explode("|", $line_votes); /* Split the data according to the specified string, and then transfer the string back to the array variable */
if ($result!=1) /*If the survey has been accepted*/
{
$file_votes=file($votes, "r");
if ($remote_addr == $file_votes[1]) /*Check if they are the same person*/
{
echo "You have already voted, thank you for your participation! ";
exit;
}/*If the IP is not repeated, execute the following procedure*/
$ficdest=fopen($votes, "w");
for ($i=0; $i<=count($dataf)-1; $i++)
{
if ($i == $vote)
$single_vote[$i]+=1;
}
fputs($ficdest, "$single_vote[$i]|"); /*Write data back to file*/
}
fputs($ficdest, "n$remote_addr");/* //Write the voter ip*/
fclose($ficdest);
$result=1; /*Vote successful*/
}/*Write the voting results and display the voting results*/
if ($result==1)
{
echo "";
for ($i=0; $i<=count($dataf)-1; $i++)
{
/*Get the total number of votes*/
$tot_votes+=$single_vote[$i];
}
for ($i=0; $i<=count($dataf)-1; $i++)
{
$imag=strval($i).".gif";/*Determine which bar picture to use to display statistical results*/
$stat[$i]=$single_vote[$i]/$tot_votes*100; /*Calculate percentage*/
$scla=$stat[$i]*5;/*Bar chart and magnification, here it is displayed by the width of the pixel that is 5 times the percentage of ampere*/
echo ""; ";
echo "$dataf[$i]";
echo "";/*Output barcode image*/
Printf("%.1f", "$stat[$i]");
echo "%";
/*Output the number of votes for this column*/
echo "$single_vote[$i]";
echo "
}
echo "";
echo "Total votes: $tot_votes ";
}/*
data.txt file
Survey item one
Survey item two
Survey item three
Survey item four
Survey item five
*/
?>

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

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

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

Hot Topics

JWT is an open standard based on JSON, used to securely transmit information between parties, mainly for identity authentication and information exchange. 1. JWT consists of three parts: Header, Payload and Signature. 2. The working principle of JWT includes three steps: generating JWT, verifying JWT and parsing Payload. 3. When using JWT for authentication in PHP, JWT can be generated and verified, and user role and permission information can be included in advanced usage. 4. Common errors include signature verification failure, token expiration, and payload oversized. Debugging skills include using debugging tools and logging. 5. Performance optimization and best practices include using appropriate signature algorithms, setting validity periods reasonably,

A string is a sequence of characters, including letters, numbers, and symbols. This tutorial will learn how to calculate the number of vowels in a given string in PHP using different methods. The vowels in English are a, e, i, o, u, and they can be uppercase or lowercase. What is a vowel? Vowels are alphabetic characters that represent a specific pronunciation. There are five vowels in English, including uppercase and lowercase: a, e, i, o, u Example 1 Input: String = "Tutorialspoint" Output: 6 explain The vowels in the string "Tutorialspoint" are u, o, i, a, o, i. There are 6 yuan in total

This tutorial demonstrates how to efficiently process XML documents using PHP. XML (eXtensible Markup Language) is a versatile text-based markup language designed for both human readability and machine parsing. It's commonly used for data storage an

Static binding (static::) implements late static binding (LSB) in PHP, allowing calling classes to be referenced in static contexts rather than defining classes. 1) The parsing process is performed at runtime, 2) Look up the call class in the inheritance relationship, 3) It may bring performance overhead.

What are the magic methods of PHP? PHP's magic methods include: 1.\_\_construct, used to initialize objects; 2.\_\_destruct, used to clean up resources; 3.\_\_call, handle non-existent method calls; 4.\_\_get, implement dynamic attribute access; 5.\_\_set, implement dynamic attribute settings. These methods are automatically called in certain situations, improving code flexibility and efficiency.

MySQL is an open source relational database management system. 1) Create database and tables: Use the CREATEDATABASE and CREATETABLE commands. 2) Basic operations: INSERT, UPDATE, DELETE and SELECT. 3) Advanced operations: JOIN, subquery and transaction processing. 4) Debugging skills: Check syntax, data type and permissions. 5) Optimization suggestions: Use indexes, avoid SELECT* and use transactions.

PHP and Python each have their own advantages, and choose according to project requirements. 1.PHP is suitable for web development, especially for rapid development and maintenance of websites. 2. Python is suitable for data science, machine learning and artificial intelligence, with concise syntax and suitable for beginners.

In PHP, you can effectively prevent CSRF attacks by using unpredictable tokens. Specific methods include: 1. Generate and embed CSRF tokens in the form; 2. Verify the validity of the token when processing the request.
