Comparing two dates in a SQL request - php

Question

I am a beginner in PHP and Javascript, so I'm struggling to compare two dates in a SELECT request like this:
<?php
require 'db.php';
$sql = "SELECT * FROM shortcode WHERE invalid_from_shortcode < Date()";
$result = pg_query($sql);
if (!$result) {
echo "Problem with query " . $query . "<br/>";
echo pg_last_error();
exit();
}
?>
I'm trying to select only the 'shortcodes' where the [invalid_from_shortcode] column is inferior from the current date.
I don't know how to get the current date and whether the structure is correct.

Answer 1

<?php
require 'db.php';
$sql = "SELECT * FROM shortcode WHERE invalid_from_shortcode < NOW()";
$result = pg_query($sql);
if (!$result) {
echo "Problem with query " . $query . "<br/>";
echo pg_last_error();
exit();
}
?>
Date() is a php function. in Mysql/PostgreSQL you must use NOW()

Answer 2

...
$sql = "SELECT * FROM shortcode WHERE invalid_from_shortcode < Date()";
...
A PHP functions like Date() is not visible in the SQL string. Either pass a value or use an equivalent Postgres function, like #pr1nc3 already suggested.
However, while you do not disclose the actual data type of invalid_from_shortcode it's unclear whether now() can serve as equivalent function. It returns the current timestamp with time zone, which is meaningfully different from the current date - effectively equivalent to the current timestamptz truncated to 00:00 according to the current timezone setting. You might need CURRENT_DATE (same as now()::date) instead. Related:
Select today's (since midnight) timestamps only
Aside: Unlike two other answers suggested, there is no CURDATE() in Postgres. That probably confusing MySQL with Postgres.

Answer 3

You want to use NOW() not DATE().

Answer 4

May be you are looking for CURDATE() .
$sql = "SELECT * FROM shortcode WHERE DATE(invalid_from_shortcode) < CURDATE()";

Answer 5

You should be using NOW() function instead of date() and you need to convert the date in a suitable format enter link description here you can visit this link for converting the date format

Answer 6

use
NOW() Returns the current date and time