Hello everyone I am new to PHP and discussing my problem with a simple example
I have a code on my file index.php
<?php
echo $a;
?>
When I run this code on my local server it show me the error-
Notice: Undefined variable: a in D:\My website\index.php on line 5
But when I host this file on server and run then it show following error-
500 - Internal server error.
There is a problem with the resource you are looking for, and it cannot be displayed.
Why its not showing actual error as it show on my local server ?
This error comes from the web server, not from PHP.
It seems (google search) that the message "There is a problem with the resource you are looking for, and it cannot be displayed" is coming from IIS, the web server of Microsoft.
IIS must be configured to be able to execute PHP files.
You can read about this configuration here
Related
I'm trying to connect to a Firebase Database server but I'm getting:
PHP Fatal error: Uncaught Error: Call to undefined function ibase_connect()
It was working good, but today it started to throw that error. I've been for the last hours searching on the internet in every page, even in Portuguese, but nothing helps.
Almost in every post they are dealing with W/L/XAMPP, but that doesn't help.
I'm trying this on a valueserver shared host (I don't even know which company is that). PHP Version: 7.2.1
The file is running via cron job.
This is what I'd tried:
Verify in php.ini that interbase is uncommented.
Look for server errors (none).
Please I don't know what to do.
Having the same problem while installing the latest Prestashop on my server. So as #Agnes Tom has recommended, I changed the define.inc.php file and this is the error it´s showing up:
Warning: session_start(): open(/var/php_sessions/sess_b3c24487f16e9dcc7ebe9b0897bee69f, O_RDWR) failed: No such file or directory (2)
in /hermes/bosnaweb14a/b1900/ipw.danarostocom/public_html/zumashoes/install/classes/session.php on line 47 Notice: Use of undefined constant _NEW_COOKIE_KEY_ - assumed '_NEW_COOKIE_KEY_'
in /hermes/bosnaweb14a/b1900/ipw.danarostocom/public_html/zumashoes/classes/Cookie.php on line 79 Fatal error: Uncaught exception 'Defuse\Crypto\Exception\BadFormatException' with message 'Encoding::hexToBin() input is not a hex string.'
in /hermes/bosnaweb14a/b1900/ipw.danarostocom/public_html/zumashoes/vendor/defuse/php-encryption/src/Encoding.php:65 Stack trace:
#0 /hermes/bosnaweb14a/b1900/ipw.danarostocom/public_html/zumashoes/vendor/defuse/php-encryption/src/Encoding.php(164): Defuse\Crypto\Encoding::hexToBin('_NEW_COOKIE_KEY...')
#1 /hermes/bosnaweb14a/b1900/ipw.danarostocom/public_html/zumashoes/vendor/defuse/php-encryption/src/Key.php(38): Defuse\Crypto\Encoding::loadBytesFromChecksummedAsciiSafeString('\xDE\xF0\x00\x00', '_NEW_COOKIE_KEY...')
#2 /hermes/bosnaweb14a/b1900/ipw.danarostocom/public_html/zumashoes/classes/PhpEncryptionEngine.php(112): Defuse\Crypto\Key::loadFromAsciiSafeString('_NEW_COOKIE_KEY...')
#3 /hermes/bosnaweb14a/b1900/ipw.danarostocom/public_html/zumashoes/classes/PhpEncryptionEngine.php(46): PhpEncryptionEngineCore::loadFromAsciiSafeString('_NEW_COOKIE_KEY...')
#4 /hermes/bosnaweb14a/b1 in /hermes/bosnaweb14a/b1900/ipw.danarostocom/public_html/zumashoes/vendor/defuse/php-encryption/src/Encoding.php on line 65
Warning: Unknown: open(/var/php_sessions/sess_b3c24487f16e9dcc7ebe9b0897bee69f, O_RDWR) failed: No such file or directory (2) in Unknown on line 0
Warning: Unknown: Failed to write session data (files).
Please verify that the current setting of session.save_path is correct (/var/php_sessions) in Unknown on line 0
Might anyone helping me to know how to solve this error??
Thank you for your time
It's throwing an error saying it can't find or write to '/var/php_sessions/'
Do you have full access to the server?
If so, check if that folder exists and if the user or web server has permission to write to it, or change in php.ini
session.save_path = "/var/php_sessions"
To something like :
session.save_path = "/home/user/sessions"
Again, must be an existing folder with read/write permissions for the user or web server (this depends if you run the web server as own user or as account user).
If it's a shared envoirement, you better contact you hosting provider. Some allow you to have a php.ini in your hosting root and you could use it to change the session.save_path, others ignore it.
How to recognize the Error 500
First, we need to go over the different ways you might see this error message on your computer. There are different forms of this message because each host/server is allowed to customize the way it’s displayed. Here are some common ways you might see this error.
“500 Internal Server Error”
“HTTP 500 – Internal Server Error”
“Internal Server Error”
“HTTP 500 Internal Error”
“500 Error”
“HTTP Error 500″
Most times you will see this message accompanied by various forms of this classic ambiguous line
“The server encountered an unexpected condition that prevented it from fulfilling the request by the client”
It’s important to note that this error can be shown on any browser and any operating system (sorry, but switching to the new Mac Pro will not solve this problem) Here is a screenshot of one of the ways this error might be displayed on your browser.
Internal error server
What is the 500 Error?
Put simply, the 500 error is the Web servers way of saying “Something went wrong but I can’t tell you what, sorry.” This is what we call a “server-side” error. That means that there is something wrong with the server who is hosting the website. It is an extremely general error usually caused by configuration issues with the websites programming, PHP or system permissions.
How Can I Troubleshoot?
Don’t fret; although this error message is absurdly vague, you still have ways to find more information. Web servers are almost always configured to hide specific error messages. If your PrestaShop store is suffering from this debilitating error, you can turn on PrestaShop’s Error Reporting from FTP or your hosting’s CPanel to get more details.
There are two ways to turn on Error Reporting in PrestaShop depending on what version you have.
For PrestaShop v1.4 through v1.5.2
Open config/config.inc.php
On or around line 29 you will find this line
#ini_set('display_errors', 'off');
Change that line to read
#ini_set('display_errors', 'on');
For PrestaShop v1.5.3+
Open config/defines.inc.php
On or around line 28 you will find this line
define('_PS_MODE_DEV_', false);
Change that line to read
define('_PS_MODE_DEV_', true);
Once you enable error reporting through your FTP or CPanel, you can navigate back to your PrestaShop’s front or back office and reproduce the error or issue you are having. For example, if you are not able to access your website because of the 500 error, you will need to turn on error reporting and refresh the page(s) that had the error. There will be additional information that you can use to investigate the problem.
Investigating the Error
Once you have the additional information, there are some standard ways to further investigate the error. First, let’s go over some the most common ways this problem is caused. Once we find the cause of this error, it is much easier to solve.
Permissions: Many times you will find that the permission setting on one of your folders is set incorrectly. It could be a simple fix as switching a file/folder permission from 777 to 755 or vice versa. In most cases permission sets of 777 are extremely unsafe and can allow even an amateur hacker to access your files and put malicious code in it. Make sure to check with your hosting provider for specific information about permissions set as some servers have different regulations.
Incorrectly configured .htaccess: Oftentimes you will receive an internal server error when the htaccess file is configured incorrectly. For PrestaShop purposes, the main culprits of the htaccess errors are “URL Rewrite” settings or Friendly URL enabling. The htaccess syntax is very strict so even one wrong character or command will cause the server to return an Internal Error 500. Make a backup of your htaccess and regenerate the htaccess file either through the back office or by toggling the Enable Friendly URL option.
Server timeout: Every server has their own timeout setting, which sets the time that any given script can run. If the function or script crosses that limit, you will receive an error 500. The most common scripts in PrestaShop that can take too long to load are CSV Imports, backups, translation loading, import/exports and thumbnail regeneration. Many times the server limit is 30 seconds, which is not long enough to run these scripts. You should contact your hosting provider and inquire about changing the limit, at least temporarily.
Now, if the problem is not solved by investigating these common causes, you should also take a look at the Apache and PHP Error logs. These are provided by your hosting provider but sometimes you will need to contact them directly in order to have access to these log files.
This is my first post here. I followed instructions and explored all the internet on this topic, still didn't figure out the solution. Added interpreter as you can see on this screenshot:
I created PHP Web Application as visible here:
And after that I when I try to run it in any browser I get this message (Don't have reputation 10 so couldn't post it as 3rd picture):
"Object not found!
The requested URL was not found on this server. If you entered the URL manually please check your spelling and try again.
If you think this is a server error, please contact the webmaster.
Error 404
localhost Apache/2.4.17 (Win32) OpenSSL/1.0.2d PHP/5.6.20"
Please help me, I don't know what to do anymore. Thanks in advance!
EDIT 1:
So I figured out that my php file and all the other files (css, js, html, img) have to be in xamp/htdocs folder so I can run it manually by writing "localhost/filename.php" in address bar. It works only if my php file is exactly in htdocs folder. Otherwise when I try to run my file from folder where the rest of my project is and in address I add "localhost/projectfolder/homepage.php" I got message saying: "
Warning: Unknown: failed to open stream: No such file or directory in
Unknown on line 0
Fatal error: Unknown: Failed opening required 'D:/xampp/htdocs/Damir
Jelusić/homepage.php' (include_path='D:\xampp\php\PEAR') in Unknown on
line 0"
I couldn't find a solution to this. Also I would like to be able to run my php page just by clickin little chrome icon in phpstorm. Tell me if it is possible. Cheers!
I can not find any answer to this as most problems revolve around a file not existing or a delete process not working.
I have an FTP device where I generate a file with an PHP script. After that, I try to FTP in, get the file and after that, delete it.
This all works fine, I can connect, get the file and save it locally and then delete it. Except for one thing, the ftp_delete() function results in a warning.
PHP gives me the following, when executing the script:
A PHP Error was encountered
Severity: Warning
Message: ftp_delete(): Command okay
I looked up the error code, it means it was successful. And it was because the file is deleted on the FTP device.
So why does this generate an PHP error?
Cheers.
The RFC 959 (FTP specification) mandates that on a successful completion of the DELE command, the server should respond with 250 status code.
The PHP FTP implementation is very strict, yielding a warning on any other code, even if it indicates a success (2xx class).
Your server probably uses some other 2xx code, like a generic 200 Command okay.
I am trying to run LWT on my mac and have installed MAMP for this. I have followed these instructions, but when I try to go to http://localhost:8888/lwt/ I am getting:
The localhost page isn’t working
localhost is currently unable to handle this request.
500
I have created a different folder in my htdocs folder and created a php file in it (index.php), with some code to see if php is working:
<?php
echo "this is the start";
phpinfo();
echo "<br>this is the end";
?>
That is all fine and works. I have also checked the user-rights for the lwt folder, but it seems fine too (Admins & Me are Read&Write, Others are ReadOnly). Typing tail -f /Applications/MAMP/logs/php_error.log into the terminal gives me the following error log:
PHP Fatal error: Uncaught Error: Call to undefined function mysql_connect() in /Applications/MAMP/htdocs/lwt/utilities.inc.php:3272
Stack trace:
#0 /Applications/MAMP/htdocs/lwt/index.php(46): require_once()
#1 {main}
thrown in /Applications/MAMP/htdocs/lwt/utilities.inc.php on line 3272
I am a beginner though, so I don't know what else the problem could be. Any ideas?
I don't know which version of PHP you use. But the mysql_* function are deprecated and its possible that its not included in your new version anymore. Use mysqli_* to connect to your database or use PDO.
In the new version of MAMP is PHP7 included. Perhaps you use that.