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How to extract and display data from CSV files using PHP
- 王林forward
- 2023-09-08 22:01:02960browse
In this article, we will learn how to display data from a CSV file using PHP’s fgetcsv(), str_getcsv, and SplFileObject functions.
CSV file is a simple file format used to store data with comma-separated values, and each row in it represents a record in the tabular data. To read a CSV file using PHP, we will use the fgetcsv() function which reads a line from a CSV file and returns an array of values representing the CSV data present in that line.
Let us understand this problem through the following example -
The Chinese translation ofExample 1
is:Example 1
In this example, we will use the fgetcsv() function to read a data CSV file and display the values in tabular form using the HTML table tag.
CSV file used in this example−
Data.csv
Name, Age, City John, 30, New York Mary, 25, Los Angeles Tom, 40, Chicago
File name: index.php
<html lang="en">
<head>
<title>How to Display Data from CSV file using PHP?</title>
</head>
<body>
<h3>How to Display Data from CSV file using PHP?</h3>
<?php
$csvFile = fopen('Data.csv', 'r');
echo '<table>';
while (($data = fgetcsv($csvFile, 1000, ",")) !== FALSE) {
echo '<tr>';
foreach ($data as $value) {
echo '<td>' . htmlspecialchars($value) . '</td>';
}
echo '</tr>';
}
echo '</table>';
fclose($csvFile);
?>
</body>
</html>
The Chinese translation of Example 2
is:Example 2
In this example, we will read a student CSV file containing the student's name, age, and gender and display their data in tabular form using 3 different methods (using the str_getcsv, fgetcsv, and SplFileObject methods).
The Chinese translation ofStudents.csv
is:Students.csv
Name,Age,Gender John Doe,25,Male Jane Smith,30,Female Bob Johnson,40,Male Sara Lee,22,Female
File name: index.php
<html lang="en">
<head>
<title>How to Display Data from CSV file using PHP?</title>
</head>
<body>
<h3>How to Display Data from CSV file using PHP?</h3>
<!-- Method 1: str_getcsv -->
<?php
$csvData = file_get_contents('students.csv');
$rows = str_getcsv($csvData, "</p><p>"); // Split CSV data into rows
echo '<h4>Method 1: str_getcsv</h4>';
echo '<table>';
echo '<thead><tr><th>Name</th><th>Age</th><th>Gender</th></tr></thead>';
echo '<tbody>';
foreach ($rows as $row) {
$values = str_getcsv($row, ","); // Split row into values
echo '<tr>';
foreach ($values as $value) {
echo '<td>' . htmlspecialchars($value) . '</td>';
}
echo '</tr>';
}
echo '</tbody></table>';
?>
<!-- Method 2: Combine fgetcsv() and HTML -->
<?php
echo '<h4>Method 2: Combine fgetcsv() and HTML</h4>';
$csvFile = fopen('students.csv', 'r');
echo '<table>';
echo '<thead><tr><th>Name</th><th>Age</th><th>Gender</th></tr></thead>';
echo '<tbody>';
while (($data = fgetcsv($csvFile, 1000, ",")) !== FALSE) {
echo '<tr>';
foreach ($data as $value) {
echo '<td>' . htmlspecialchars($value) . '</td>';
}
echo '</tr>';
}
echo '</tbody></table>';
fclose($csvFile);
?>
<!-- Method 3: using SplFileObject -->
<?php
echo '<h4>Method 3: using SplFileObject</h4>';
$csvFile = new SplFileObject('students.csv', 'r');
$csvFile->setFlags(SplFileObject::READ_CSV);
echo '<table>';
echo '<thead><tr><th>Name</th><th>Age</th><th>Gender</th></tr></thead>';
echo '<tbody>';
foreach ($csvFile as $row) {
echo '<tr>';
foreach ($row as $value) {
echo '<td>' . htmlspecialchars($value) . '</td>';
}
echo '</tr>';
}
echo '</tbody></table>';
?>
Conclusion
In summary, displaying data from a CSV file using PHP is a simple process, you can use the fgetcsv() function. With the help of HTML tags, we can easily display data in tabular form. By following the examples provided in this article, we learned to read and display data from CSV files in PHP, which can be useful in various applications.
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