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PHP_store_and_search_data_for_start_learning
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<?php | |
// for data add | |
function add_data($id, $name, $phone) | |
{ | |
$data = sprintf('%10d%60s%15s', $id, $name, $phone); | |
$file = fopen('db.txt', 'a'); | |
fwrite($file, $data); | |
fclose($file); | |
} | |
if (isset($_GET['add-data'])) { | |
$id = $_GET['id'] + 0; | |
$name = $_GET['name']; | |
$phone = $_GET['phone']; | |
add_data($id, $name, $phone); | |
} | |
?> | |
<?php | |
// for data show | |
function get_data() | |
{ | |
$file = fopen('db.txt', 'r'); | |
$filesize = filesize('db.txt'); | |
$data = fread($file, $filesize); | |
fclose($file); | |
// echo $data; | |
$ln = strlen($data); | |
$students = []; | |
for ($i = 0; ; $i++) { | |
$start = $i * 85; | |
$extra = 85; | |
if ($start + $extra > $ln) { | |
break; | |
} | |
$student_info = substr($data, $start, $extra); | |
$id = trim(substr($student_info, 0, 10)); | |
$name = trim(substr($student_info, 10, 60)); | |
$phone = trim(substr($student_info, 70, 15)); | |
// echo "<br>id: $id - Name: $name - Phone: $phone"; | |
$student['name'] = $name; | |
$student['id'] = $id+0; | |
$student['phone'] = $phone; | |
$students[] = $student; | |
} | |
return $students; | |
} | |
function show_data(){ | |
$students = get_data(); | |
foreach ($students as $student){ | |
echo $student['id']. '<br>'; | |
} | |
} | |
function show_data_by_id($id){ | |
// $flag = 0; | |
$students = get_data(); | |
foreach ($students as $student){ | |
if ($student['id'] == $id) { | |
echo $student['name'] . '<br>'; | |
return; | |
} | |
} | |
// if ($flag == 0){ | |
echo "No Data Found at roll $id"; | |
// } | |
} | |
if (isset($_GET['search-data'])){ | |
$id = $_GET['search-id']; | |
show_data_by_id($id); | |
}else{ | |
show_data(); | |
} | |
?> | |
<form action="" method="GET"> | |
<input type="number" name="id" placeholder="id"> | |
<input type="text" name="name" placeholder="name"> | |
<input type="text" name="phone" placeholder="phone"> | |
<input type="submit" name="add-data" value="Add"> | |
</form> | |
<br> | |
<br> | |
<br> | |
<form action="" method="GET"> | |
<input type="number" name="search-id" placeholder="id"> | |
<input type="submit" name="search-data" value="search"> | |
</form> | |
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