Fix ctype_digit() Argument Type Error in Postgre Driver

[Obata2024]

Summary

This Pull Request addresses the deprecation warning for ctype_digit() when the argument is of type int. The warning message is as follows:

A PHP Error was encountered
Severity: 8192

Message: ctype_digit(): Argument of type int will be interpreted as string in the future

Filename: postgre/postgre_driver.php

Line Number: 98

Changes Made

• Cast the $this->port to a string before passing it to ctype_digit() in the _build_dsn() method of the postgre_driver.php file.

Before

if ( ! empty($this->port) && ctype_digit($this->port))
{
    $this->dsn .= 'port='.$this->port.' ';
}

if ( ! empty($this->port) && ctype_digit((string) $this->port))
{
    $this->dsn .= 'port='.$this->port.' ';
}