Re: php-fpm doesn't run php-curl curl_exec() succesfully

Hello, and thanks for the reply! I did use the curl_error() function, adding it to the program below via: ========== if( ($result = curl_exec($handle)) === false ) { echo "curl_exec fail " . curl_error($handle) . "\n"; $status = ''; } else { . . . . . . } ========== When testing it via my webserver, I did see the "curl_exec_fail.." error message, but sadly the error message was null. And again, the only entry I saw in /var/log/php-fpm/www-error.log was the same: PHP Warning: Trying to access array offset on value of type null in /var/www/html/test.php on line 25 I did eventually stumble across the cause of my problem when I tried replacing all the php_curl() calls with file_get_contents( "https://$user:$pass$$url" );. This failed too, but it gave me the www-error.log entry: PHP Warning: file_get_contents(https://...@<my url>): Failed to open stream: Permission denied This pointed me in the direction I should've been looking to begin with: selinux! It develops that the default selinux policies for httpd frown upon web documents opening any sort of file, including connections to other websites. To get the PHP script to work with selinux enabled I had to toggle two selinux booleans: ========== [root@arch php-fpm]# setsebool -P httpd_can_network_connect 1 [root@arch php-fpm]# setsebool -P httpd_unified 1 ========== And then restart httpd. Then the web version of my PHP script's curl_exec call was able to retrieve the same data as when run from the command line. I am not about to try to delve into the internals of the PHP language any time soon, but it is too bad that curl_error() was unable to capture and provide any error message when the curl_exec() call failed, and that the php-fpm process logged no error when curl_exec() failed. In any case, your suggestion to try curl_error() led me to verify that curl_exec() was returning false, and that eventually led me to selinux. Thanks again! Yours, Kurt Reimer ________________________________ From: Jānis Elmeris <janis.elmeris@lv.lv> Sent: Monday, January 8, 2024 3:16 AM To: kurt thepw.com <kurt@thepw.com>; php-general@lists.php.net <php-general@lists.php.net> Subject: RE: php-fpm doesn't run php-curl curl_exec() succesfully Hello! Use "curl_error" to debug CURL-related errors: https://www.php.net/manual/en/function.curl-error.php Best regards, Janis ________________________________ No: kurt thepw.com <kurt@thepw.com> Nosūtīts: svētdiena, 2024. gada 7. janvāris 05:46 Kam: php-general@lists.php.net <php-general@lists.php.net> Tēma: php-fpm doesn't run php-curl curl_exec() succesfully Hello, This php script (with the real URL & credentials put back in) runs successfully from the command-line. It uses php_curl to retrieve JSON-formatted data, converts the result to an associative array, and displays one of the entries and the length of the retrieved JSON data: ========== #!/usr/bin/php <?php $url = "https://host.ext"; $user = "<user>"; $pass = "<pw>"; $curl = curl_init(); curl_setopt($curl, CURLOPT_HTTPAUTH, CURLAUTH_BASIC); curl_setopt($curl, CURLOPT_USERPWD, $user.":".$pass); curl_setopt($curl, CURLOPT_URL, $url); curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1); //curl_setopt($curl, CURLOPT_HTTPHEADER, array('Content-Type:application/json')); //curl_setopt($curl, CURLOPT_HTTPHEADER, array('Accept: application/json')); $result = curl_exec($curl); $resultlen = strlen($result); curl_close($curl); $r_ary = array(); $r_ary = json_decode( $result , true , 512 , JSON_OBJECT_AS_ARRAY ); $st = 'status'; $status = $r_ary[$st]; echo "<!doctype html>"; echo "<html>"; echo "<body>"; echo "Length: $resultlen"; echo "Status: $status"; echo "</body>"; echo "</html>"; ?> ========== But if I remove the first line, put the result in the same computer's HTML document root and try to access via a web browser, it retrieves zero bytes.. It seems the curl_exec() doesn't retrieve anything. I get the following in /var/log/php-fpm/www-error.log: PHP Warning: Trying to access array offset on value of type null in /var/www/html/test.php on line 25 I'm running Centos stream 9, with apache2.4 configured for php-fpm. The command-line PHP is 8.0.30. It seems like php-fpm has different behavior with the various curl_xxxx() functions, even partial broken-ness, when compared to commandline PHP Any help would be much appreciated. Yours, Kurt Reimer Use