{"id":69578,"date":"2025-08-23T03:01:00","date_gmt":"2025-08-22T17:01:00","guid":{"rendered":"https:\/\/www.rjmprogramming.com.au\/ITblog\/?p=69578"},"modified":"2025-08-23T09:33:28","modified_gmt":"2025-08-22T23:33:28","slug":"code-difference-reporting-context-tutorial","status":"publish","type":"post","link":"https:\/\/www.rjmprogramming.com.au\/ITblog\/code-difference-reporting-context-tutorial\/","title":{"rendered":"Code Difference Reporting Context Tutorial"},"content":{"rendered":"
\"Code<\/a>

Code Difference Reporting Context Tutorial<\/p><\/div>\n

We’re back (after Code Difference AlmaLinux New Webserver Issue Tutorial<\/a>) at improving Code Difference Reporting at the RJM Programming domain today.<\/p>\n

We had a day recently where we thought it useful to somehow point out to users if their Code Difference Report is not related to the most up to date one they could get, or for that matter if not at the beginning of the code development process.<\/p>\n

And then a few days later we realized it would be related, and good, to supply some code file dates for reference, which now happens via a double click or with non-mobile user, just hovering over the Code Difference Report web page.<\/p>\n

Primarily, what changed is encapsulated by this new PHP function …<\/p>\n

<?php
\n
\nfunction posthit($inhit) {
\n global $dtbizzo;
\n $outhit=$inhit;
\n $preout=\"\";
\n $pregetme=\"\";
\n $postgetme=\"\";
\n $htis='';
\n if (strpos($inhit, 'http:\/\/www.rjmprogramming.com.au') !== false) {
\n $htis='http:\/\/';
\n } else if (strpos($inhit, 'HTTPS:\/\/www.rjmprogramming.com.au') !== false) {
\n $htis='HTTPS:\/\/';
\n }
\n if (strpos($inhit, '' . $htis . 'www.rjmprogramming.com.au') !== false) {
\n if (strpos($inhit, '_GETME') !== false) {
\n $pregetme=str_replace(\"\" . $htis . \"www.rjmprogramming.com.au\",$_SERVER['DOCUMENT_ROOT'],explode(\"_GETME\", $inhit)[0]);
\n } else {
\n $pregetme=rtrim(str_replace(\"\" . $htis . \"www.rjmprogramming.com.au\",$_SERVER['DOCUMENT_ROOT'],explode(\"-GETME\", $inhit)[0]),'-');
\n }
\n $maxlenfile=\"\";
\n $minlenfile=\"\";
\n $seclast=\"\";
\n $thelast=\"\";
\n foreach (glob($pregetme . \"*GETME\") as $flfilename) {
\n if ($thelast == \"\") {
\n $thelast=basename($flfilename);
\n } else {
\n $seclast=$thelast;
\n $thelast=basename($flfilename);
\n }
\n }
\n $thisoneinteresting=true;
\n $nextoneinteresting=false;
\n $midoneinterest=false;
\n foreach (glob($pregetme . \"*GETME\") as $flfilename) {
\n if ($dtbizzo == \"\") {
\n $dtbizzo=\" document.body.title='Relevant filenames and dates (also via double click) are '; \";
\n }
\n if ($seclast == basename($flfilename)) {
\n $thisoneinteresting=true;
\n $nextoneinteresting=false;
\n $midoneinterest=false;
\n }
\n if (basename($flfilename) == basename($inhit)) {
\n $thisoneinteresting=true;
\n $nextoneinteresting=false;
\n $midoneinteresting=true;
\n }
\n if ($maxlenfile == \"\") {
\n $maxlenfile=$flfilename;
\n $minlenfile=$flfilename;
\n } else if (strlen($flfilename) > strlen($maxlenfile)) {
\n $maxlenfile=$flfilename;
\n } else if (strlen($flfilename) <= strlen($minlenfile)) {
\n if (strlen($flfilename) < strlen($minlenfile)) {
\n $minlenfile=$flfilename;
\n } else { \/\/if (strpos($flfilename, '-GETME') !== false) {
\n if (file_exists(str_replace('_GETME','-GETME',$flfilename))) {
\n $minlenfile=str_replace('_GETME','-GETME',$flfilename);
\n } else {
\n $minlenfile=$flfilename;
\n }
\n }
\n }
\n if (strpos($dtbizzo, \" \") === false && ($thisoneinteresting || $nextoneinteresting || $midoneinteresting)) {
\n $dtbizzo=str_replace(\" ';\", \"' + String.fromCharCode(10) + '\" . basename($flfilename) . \" \" . date (\"F d Y H:i:s.\", filemtime($flfilename)) . \" ';\",$dtbizzo);
\n if ($thisoneinteresting && !$nextoneinteresting && !$midoneinteresting) {
\n $thisoneinteresting=false;
\n $nextoneinteresting=true;
\n } else if ($thisoneinteresting && !$nextoneinteresting && $midoneinteresting) {
\n $thisoneinteresting=false;
\n $nextoneinteresting=false;
\n } else if (!$thisoneinteresting && !$nextoneinteresting && $midoneinteresting) {
\n $midoneinteresting=false;
\n } else if (!$thisoneinteresting && $nextoneinteresting && !$midoneinteresting) {
\n $nextoneinteresting=false;
\n }
\n }
\n }
\n if ($dtbizzo != \"\" && strpos($dtbizzo, \" \") === false) { $dtbizzo.=' document.body.ondblclick=function(){ var huhpr=prompt(document.body.title,document.body.title); }; '; }
\n }
\n
\n if ($minlenfile != \"\" && $maxlenfile != \"\") {
\n if (str_replace($_SERVER['DOCUMENT_ROOT'],\"\" . $htis . \"www.rjmprogramming.com.au\",$minlenfile) == $inhit && str_replace($_SERVER['DOCUMENT_ROOT'],\"\" . $htis . \"www.rjmprogramming.com.au\",$maxlenfile) == $inhit) {
\n $preout.=\" corresponds to first (and last) difference report ... \";
\n } else if (str_replace($_SERVER['DOCUMENT_ROOT'],\"\" . $htis . \"www.rjmprogramming.com.au\",$minlenfile) == $inhit) {
\n $preout.=\" is first relevant difference report and <a target=_blank title='Latest difference report' href='\/PHP\/Geographicals\/diff.php?one=\" . str_replace($_SERVER['DOCUMENT_ROOT'],\"\" . $htis . \"www.rjmprogramming.com.au\",$maxlenfile) . \"'>currently the report would be<\/a> <font size=1>(but work on it may be not finalised)<\/font> ... \";
\n } else if (str_replace($_SERVER['DOCUMENT_ROOT'],\"\" . $htis . \"www.rjmprogramming.com.au\",$maxlenfile) == $inhit) {
\n $preout.=\" <a target=_blank title='First difference report' href='\/PHP\/Geographicals\/diff.php?one=\" . str_replace($_SERVER['DOCUMENT_ROOT'],\"\" . $htis . \"www.rjmprogramming.com.au\",$minlenfile) . \"'>is first relevant difference report<\/a> and this report corresponds to latest difference report ... \";
\n } else if ($minlenfile != \"\" && $maxlenfile != \"\") {
\n $preout.=\" <a target=_blank title='First difference report' href='\/PHP\/Geographicals\/diff.php?one=\" . str_replace($_SERVER['DOCUMENT_ROOT'],\"\" . $htis . \"www.rjmprogramming.com.au\",$minlenfile) . \"'>is first relevant difference report<\/a> and <a target=_blank title='Latest difference report' href='\/PHP\/Geographicals\/diff.php?one=\" . str_replace($_SERVER['DOCUMENT_ROOT'],\"\" . $htis . \"www.rjmprogramming.com.au\",$maxlenfile) . \"'>currently the report would be<\/a> <font size=1>(but work on it may be not finalised)<\/font> ... \";
\n }
\n }
\n
\n return $preout . $outhit;
\n}
\n<\/code>
\n?><\/p>\n

… within the diff.php<\/a> PHP code base.<\/p>\n

\n

\n

Previous relevant Code Difference AlmaLinux New Webserver Issue Tutorial<\/a> is shown below.<\/p>\n

\"Code<\/a>

Code Difference AlmaLinux New Webserver Issue Tutorial<\/p><\/div>\n

Software people involved in PHP programming will be aware that a lot of “what goes on under the hood” configuration wise happens regarding that PHP version’s php.ini configuration file. Sometimes you have direct access to changing the php.ini file. Need I say “be careful” if you make changes, and restart the Apache httpd service to implement? There’ll be situations you have no access to that php.ini file or rely on a shared hosting environment or prefer better experts to handle the changes cough, cough<\/sup> where you’ll forgo these changes to your web hoster’s expertise. Anyway, up until today, php.ini issues on our newer AlmaLinux webserver stopped it performing on that webserver, and had us pointing back to the old webserver IP address to get something working these last weeks.<\/p>\n

That php.ini may have a directive …<\/p>\n

\ndisable_functions\n<\/p><\/blockquote>\n

… where PHP functions such as exec<\/a><\/i> and shell_exec<\/a><\/i> become more and more contentious over time regarding security concerns. Other PHP functions in that category might be file_get_contents (and we started using PHP fread<\/a> a lot more for example<\/font> …<\/p>\n

<?php
\n
\n $fis = $_SERVER['DOCUMENT_ROOT'] . explode('rjmprogramming.com.au', $inuis)[1];
\n $his = fopen($fis, \"r\");
\n $cis = fread($his, filesize($fis));
\n fclose($his);
\n<\/code>
\n?><\/p>\n

… with today’s project’s coding)<\/font> and file_put_contents amongst others.<\/p>\n

Our coding difference report (talked about below with Code Difference AlmaLinux HTML Issue Followup Tutorial<\/a>) revolves around the Linux command …<\/p>\n

\ndiff\n<\/p><\/blockquote>\n

… and though we could rearrange into a crontab\/curl arrangement that would get around the need for exec<\/i> and shell_exec<\/i> calls within this project’s PHP … but as Lleyton and John would say … come on … and … you cannot be serious!<\/p>\n

The new diff.php<\/a> got changed as per this link<\/a> to suit this new webserver, on it’s own terms.<\/p>\n

\n

\n

Previous relevant Code Difference AlmaLinux HTML Issue Followup Tutorial<\/a> is shown below.<\/p>\n

\"Code<\/a>

Code Difference AlmaLinux HTML Issue Followup Tutorial<\/p><\/div>\n

Web application solutions, looking at them the next day, can often throw up …<\/p>\n

\nThere’s more to it than that.\n<\/p><\/blockquote>\n

… ideas, especially if you’ve been beavering away at the one code source (section), and the overall solution might involve more than that. And it may be …<\/p>\n