membd

Showing posts with label file handling. Show all posts

Sunday, September 13, 2015

file upload in php

<?php
if(isset($_POST['submit'])){
$file = $_FILES['file'];
$name = $file['name'];
$type = $file['type'];
$tmp_name = $file['tmp_name'];
$error = $file['error'];
$extension = explode('.', $name);
$extension = end($extension);
$extension = strtolower($extension);
$allowed = ['txt', 'php', 'html'];
$directory = 'assignment/';
if(in_array($extension, $allowed)){
$location = $directory . $name;
move_uploaded_file($tmp_name, $location);
}
}

?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
</head>
<body>
<form method="post" enctype="multipart/form-data">
<input type="file" name="file" id="">
<input type="submit" name="submit" id="">
</form>
</body>
</html>

Saturday, September 12, 2015

storing form data to a file (working with file)

<?php
if(isset($_POST['name'])){
$name = $_POST['name'];
$email = $_POST['email'];
$contact = $_POST['contact'];
$string = $name . " \t " . $email . " \t " . $contact . "\n";
$pointer = fopen('myfile.txt', 'a+');
fwrite($pointer, $string);
}

?>
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/css/bootstrap.min.css">
</head>
<body>
<div class="container">
<h1>Please contact with us</h1>
<form method="post">
<div class="form-group">
<label for="name">Name</label>
<input type="text" name="name" id="name" class="form-control">
</div>
<div class="form-group">
<label for="email">Email</label>
<input type="text" name="email" id="email" class="form-control">
</div>
<div class="form-group">
<label for="contact">Contact</label>
<input type="text" name="contact" id="contact" class="form-control">
</div>
<div class="form-group">
<input type="submit" name="submit" id="contact" class="btn btn-lg btn-success">
</div>

</form>
</div>

</body>
</html>

Sunday, August 30, 2015

findings frequency number from a file by using own explode code and frequency code - modularity approach

in functions.php
===========================

<?php
//for exploding a string to array
function myExplode($string)
{
$length = strlen($string);
$word = "";
$words = array();
for ($i = 0; $i < $length; $i++) {
if (ord($string[$i]) == 13) {
continue;
}
if ($string[$i] == " " || $i == $length - 1 || $string[$i] == "\n") {

if ($i == $length - 1) {
$word .= $string[$i];
}
if(!empty($word)){
$words[] = $word;
}
$word = "";
} else {
$word .= $string[$i];
}
}
return $words;
}

//for determine frequency
function frequency($words){
$frequency = array();

foreach ($words as $word) {
if(array_key_exists($word, $frequency)){
$frequency[$word] ++;
} else {
$frequency[$word] = 1;
}
}

return $frequency;
}

in file.php
================

<?php
require 'functions.php';
$pointer = fopen('php.txt', 'r');
$string = fread($pointer, filesize('php.txt'));
$words = myExplode($string);
$frequency = frequency($words);
print_r($frequency);

findings frequency number from a file by using own explode code and frequency code

<?php
$pointer = fopen('php.txt', 'r');
$string = fread($pointer, filesize('php.txt'));
$length = strlen($string);
$word = "";
$words = array();

for($i = 0; $i < $length; $i++){
if(ord($string[$i]) == 13){
continue;
}
if($string[$i] == " " || $i == $length - 1 || $string[$i] == "\n"){

if($i == $length - 1){
$word .= $string[$i];
}
if(!empty($word)){
$words[] = $word;
}
$word = "";
}else{
$word .= $string[$i];
}
}
//for determine frequency
$frequency = array();

foreach ($words as $word) {
if(array_key_exists($word, $frequency)){
$frequency[$word] ++;
} else {
$frequency[$word] = 1;
}
}

foreach($frequency as $key => $value){
echo "$key => $value <br>";
}

file writing and file appending || file handling in php

<?php
/*
*file reading and file appending
* */
$pointer = fopen('hello.txt', 'w');//mode is w means file open for writing purpose
fwrite($pointer, "Hello world\n"); //that will replace all existing sentence or word and write hello world in hello.txt file
fclose($pointer);

$pointer = fopen('hello.txt', 'a');//mode is a means file open for appending some line / word
fwrite($pointer, 'Hello world in another line');

file reading || file handling in php

<?php
/*
*for reading only
* */
$pointer = fopen('php.txt', 'r'); //first argument is file name, 2nd parameter is mode some modes are r, w, a, a+
//fgets() return one line from file keep cursor to end of the line
echo fgets($pointer) ;
echo '<br>';
echo fgets($pointer) ;
echo '<br>';
fclose($pointer);

$pointer2 = fopen('php.txt', 'r');
//fgets() return one line from file keep cursor to end of the line
echo fgets($pointer2) ;
echo '<br>';
echo fread($pointer2, filesize('php.txt'));//this line echoing everything (all word) from php.txt
echo '<br>';
fclose($pointer2);

$pointer3 = fopen('php.txt', 'r');
while(!feof($pointer3)){
echo fgetc($pointer3) . '<br>';
}
fclose($pointer3);
//feof() is file-end-of-file, fgetc() is file-get-character();