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php – Dynamically display a CSV file as an HTML table on a web page

Posted by: admin April 23, 2020 Leave a comment

Questions:

I’d like to take a CSV file living server-side and display it dynamically as an html table.
E.g., this:

Name, Age, Sex
"Cantor, Georg", 163, M

should become this:

<html><body><table>
<tr> <td>Name</td> <td>Age</td> <td>Sex</td> </tr>
<tr> <td>Cantor, Georg</td> <td>163</td> <td>M</td> </td>
</table></body></html>

Solutions in any language are welcome.

How to&Answers:

The previously linked solution is a horrible piece of code; nearly every line contains a bug. Use fgetcsv instead:

<?php
echo "<html><body><table>\n\n";
$f = fopen("so-csv.csv", "r");
while (($line = fgetcsv($f)) !== false) {
        echo "<tr>";
        foreach ($line as $cell) {
                echo "<td>" . htmlspecialchars($cell) . "</td>";
        }
        echo "</tr>\n";
}
fclose($f);
echo "\n</table></body></html>";

Answer:

Here is a simple function to convert csv to html table using php:

function jj_readcsv($filename, $header=false) {
$handle = fopen($filename, "r");
echo '<table>';
//display header row if true
if ($header) {
    $csvcontents = fgetcsv($handle);
    echo '<tr>';
    foreach ($csvcontents as $headercolumn) {
        echo "<th>$headercolumn</th>";
    }
    echo '</tr>';
}
// displaying contents
while ($csvcontents = fgetcsv($handle)) {
    echo '<tr>';
    foreach ($csvcontents as $column) {
        echo "<td>$column</td>";
    }
    echo '</tr>';
}
echo '</table>';
fclose($handle);
}

One can call this function like jj_readcsv('image_links.csv',true);

if second parameter is true then the first row of csv will be taken as header/title.

Hope this helps somebody. Please comment for any flaws in this code.

Answer:

phihag’s answer puts each row in a single cell, while you are asking for each value to be in a separate cell. This seems to do it:

<?php
// Create a table from a csv file 
echo "<html><body><table>\n\n";
$f = fopen("so-csv.csv", "r");
while (($line = fgetcsv($f)) !== false) {
        $row = $line[0];    // We need to get the actual row (it is the first element in a 1-element array)
        $cells = explode(";",$row);
        echo "<tr>";
        foreach ($cells as $cell) {
            echo "<td>" . htmlspecialchars($cell) . "</td>";
        }
        echo "</tr>\n";
}
fclose($f);
echo "\n</table></body></html>";
?>

Answer:

Does it work if you escape the quoted commas with \ ?

Name, Age, Sex

“Cantor\, Georg”, 163,M

Most delimited formats require that their delimiter be escaped in order to properly parse.


A rough Java example:

import java.util.Iterator;

public class CsvTest {

    public static void main(String[] args) {
        String[] lines = { "Name, Age, Sex", "\"Cantor, Georg\", 163, M" };

        StringBuilder result = new StringBuilder();

        for (String head : iterator(lines[0])) {
            result.append(String.format("<tr>%s</tr>\n", head));
        }

        for (int i=1; i < lines.length; i++) {
            for (String row : iterator(lines[i])) {
                result.append(String.format("<td>%s</td>\n", row));
            }
        }

        System.out.println(String.format("<table>\n%s</table>", result.toString()));
    }

    public static Iterable<String> iterator(final String line) {
        return new Iterable<String>() {
            public Iterator<String> iterator() {
                return new Iterator<String>() {
                    private int position = 0;

                    public boolean hasNext() {
                        return position < line.length();
                    }

                    public String next() {
                        boolean inquote = false;
                        StringBuilder buffer = new StringBuilder();
                        for (; position < line.length(); position++) {
                            char c = line.charAt(position);
                            if (c == '"') {
                                inquote = !inquote;
                            }
                            if (c == ',' && !inquote) {
                                position++;
                                break;
                            } else {
                                buffer.append(c);
                            }
                        }
                        return buffer.toString().trim();
                    }

                    public void remove() {
                        throw new UnsupportedOperationException();
                    }
                };
            }
        };
    }
}

Answer:

HTML … tag can do that itself i.e. no PHP or java.

or see this post for complete detail on the above (with all options..).

http://www.linuxquestions.org/questions/programming-9/how-to-show-csv-data-as-html-in-internet-explorer-with-filter-buttons-4175443612/

Answer:

define “display it dynamically” ? that implies the table is being built via javascript and some sort of Ajax-y update .. if you just want to build the table using PHP that’s really not what I would call ‘dynamic’

Answer:

XmlGrid.net has tool to convert csv to html table. Here is the link:
http://xmlgrid.net/csvToHtml.html

I used your sample data, and got the following html table:

<table>
<!--Created with XmlGrid Free Online XML Editor (http://xmlgrid.net)-->
<tr>
  <td>Name</td>
  <td> Age</td>
  <td> Sex</td>
</tr>
<tr>
  <td>Cantor, Georg</td>
  <td> 163</td>
  <td> M</td>
</tr>
</table>