How to save a date from php to SQL table? - sql

Question

i have a php file that works OK.
That php makes recursive search in a local folder, and calculates the last modification DATE of those files.
My question: Every time that i open that php file i want that date to be stored in a SQL table.
-i have created a table with 2 columns (ID, date) where ID=1 then go and update the date field.
but how can i call FROM php file to save the date into sql field?
My php file:
<?php
// LAST FILES UPDATE
function getAllFiles($directory, $recursive = true) {
$result = array();
$handle = opendir($directory);
while ($datei = readdir($handle))
{
if (($datei != '.') && ($datei != '..'))
{
$file = $directory.$datei;
if (is_dir($file)) {
if ($recursive) {
$result = array_merge($result, getAllFiles($file.'/'));
}
} else {
$result[] = $file;
}
}
}
closedir($handle);
return $result;
}
function getHighestFileTimestamp($directory, $recursive = true) {
$allFiles = getAllFiles($directory, $recursive);
$highestKnown = 0;
foreach ($allFiles as $val) {
$currentValue = filemtime($val);
if ($currentValue > $highestKnown) $highestKnown = $currentValue;
}
return $highestKnown;
}
echo '<div align="center" style=" padding-top:5px; margin-top:5px; border-top:dotted #777; border-width:1px;">Last Update Date:<br>';
date_default_timezone_set('Europe/Athens');
setlocale(LC_ALL, array('el_GR.UTF-8','el_GR#euro','el_GR','greek'));
echo strftime('%d %b %Y, %H:%M:%S', getHighestFileTimestamp('../'));
echo '</div>';
$host="localhost"; // Host name
$username="..."; // Mysql username
$password="..."; // Mysql password
$db_name="..."; // Database name
$tbl_name="..."; // Table name
// Connect to server and select database.
mysql_connect("$host", "$username", "$password")or die("cannot connect");
mysql_select_db("$db_name")or die("cannot select DB");
// update data in mysql database
$sql="UPDATE $tbl_name SET date='HUMMMM HERE HOW TO PULL THE VALUE?' WHERE id='1'";
$result=mysql_query($sql);
// if successfully updated.
if($result){
echo "Successful";
echo "<BR>";
}
else {
echo "ERROR";
}
?>

Answer 1

Try something like this:
// use the function to calculate highest timestamp
$highestdate = getHighestFileTimestamp("../");
// Insert the highest timestamp into the db
$sql= sprintf("UPDATE $tbl_name SET date='%s' WHERE id='1'",
$highestdate);
--EDIT-- merged with Hiroto's answer
You can use these other styles to concatenate string constants with variables
$sql = "UPDATE {$tbl_name} SET date='{$date}' WHERE id='{$id}';";
Or, you could use concatenation.
$sql = "UPDATE " . $tbl_name . " SET date='" . $date . "' WHERE id='1';";

Answer 2

$sql = "UPDATE {$tbl_name} SET date='{$date}' WHERE id='{$id}';";
Or, you could use concatenation.
$sql = "UPDATE " . $tbl_name . " SET date='" . $date . "' WHERE id='1';";