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Last updated: Tue Sep 28 08:03:36 2021 UTC |
Description: ------------ Calling highlight_xxx() with content that, if executed as a normal PHP script, would generate an error, results in the error being available to error_get_last(), even though, no actual PHP error has been generated by THIS code. Even if all error reporting has been disabled in this script. Whilst it there is a user note covering that error_get_last() will capture any error, even if it is suppressed, there is no error for highlight_xxx(), except when you have error_reporting set to show errors, display_errors are set AND you are using highlight_file() (rather than highlight_string()) to display some code. So, 2 issues. 1 - Inconsistent error reporting between highlight_file() and highlight_string() when error_reporting is enabled and errors are displayed. 2 - Errors generated from non executed code are reported as errors in this script even though no error is output (with 1 exception). I found this when looking into the iconv() notices generated by PhD for fa and ro Windows CHM building. Test script: --------------- <?php $badScript = '<?php /* Broken comment '; file_put_contents('./badScript.php', $badScript); function examine($text, $filename, $errorReporting, $displayErrors) { // Report all errors and display them. error_reporting($errorReporting); ini_set('display_errors', $displayErrors); ini_set('log_errors', $displayErrors); echo 'error_reporting = ', $errorReporting, PHP_EOL, 'display_errors = ', $displayErrors, PHP_EOL, 'log_errors = ', $displayErrors, PHP_EOL, PHP_EOL, // Highlight the text highlight_string($text, True), PHP_EOL, // What is the last known error? 'Last error is for highlight_string() if it is on line 19 :', PHP_EOL, print_r(error_get_last(), True), PHP_EOL, // Highlight the file highlight_file($filename, True), PHP_EOL, // What is the last known error? 'Last error is for highlight_file() if it is on line 25 :', PHP_EOL, print_r(error_get_last(), True), PHP_EOL; } examine($badScript, './badScript.php', -1, 1); examine($badScript, './badScript.php', -1, 0); examine($badScript, './badScript.php', 0, 1); examine($badScript, './badScript.php', 0, 0); unlink('./badScript.php'); // Turn off all error reporting, display and logging. error_reporting(0); ini_set('display_errors', 0); ini_set('log_errors', 0); // Generate an error. echo mktime(), PHP_EOL, 'Last error is for mktime() if it is on line 43 : ', PHP_EOL, print_r(error_get_last(), True), PHP_EOL; Expected result: ---------------- error_reporting = -1 display_errors = 1 log_errors = 1 <code><span style="color: #000000"> <span style="color: #0000BB"><?php <br /></span><span style="color: #FF9900">/* Broken comment <br /></span> </span> </code> Last error : <code><span style="color: #000000"> <span style="color: #0000BB"><?php <br /></span><span style="color: #FF9900">/* Broken comment <br /></span> </span> </code> Last error : error_reporting = -1 display_errors = 0 log_errors = 0 <code><span style="color: #000000"> <span style="color: #0000BB"><?php <br /></span><span style="color: #FF9900">/* Broken comment <br /></span> </span> </code> Last error : <code><span style="color: #000000"> <span style="color: #0000BB"><?php <br /></span><span style="color: #FF9900">/* Broken comment <br /></span> </span> </code> Last error : error_reporting = 0 display_errors = 1 log_errors = 1 <code><span style="color: #000000"> <span style="color: #0000BB"><?php <br /></span><span style="color: #FF9900">/* Broken comment <br /></span> </span> </code> Last error : <code><span style="color: #000000"> <span style="color: #0000BB"><?php <br /></span><span style="color: #FF9900">/* Broken comment <br /></span> </span> </code> Last error : error_reporting = 0 display_errors = 0 log_errors = 0 <code><span style="color: #000000"> <span style="color: #0000BB"><?php <br /></span><span style="color: #FF9900">/* Broken comment <br /></span> </span> </code> Last error : <code><span style="color: #000000"> <span style="color: #0000BB"><?php <br /></span><span style="color: #FF9900">/* Broken comment <br /></span> </span> </code> Last error : 1309341644 Actual result: -------------- error_reporting = -1 display_errors = 1 log_errors = 1 <code><span style="color: #000000"> <span style="color: #0000BB"><?php <br /></span><span style="color: #FF9900">/* Broken comment <br /></span> </span> </code> Last error is for highlight_string() if it is on line 19 : Array ( [type] => 128 [message] => Unterminated comment starting line 2 [file] => Z:\ts1.php [line] => 19 ) <code><span style="color: #000000"> <span style="color: #0000BB"><?php <br /> Warning: Unterminated comment starting line 2 in Z:\ts1.php on line 25 </span><span style="color: #FF9900">/* Broken comment <br /></span> </span> </code> Last error is for highlight_file() if it is on line 25 : Array ( [type] => 128 [message] => Unterminated comment starting line 2 [file] => Z:\ts1.php [line] => 25 ) error_reporting = -1 display_errors = 0 log_errors = 0 <code><span style="color: #000000"> <span style="color: #0000BB"><?php <br /></span><span style="color: #FF9900">/* Broken comment <br /></span> </span> </code> Last error is for highlight_string() if it is on line 19 : Array ( [type] => 128 [message] => Unterminated comment starting line 2 [file] => Z:\ts1.php [line] => 19 ) <code><span style="color: #000000"> <span style="color: #0000BB"><?php <br /></span><span style="color: #FF9900">/* Broken comment <br /></span> </span> </code> Last error is for highlight_file() if it is on line 25 : Array ( [type] => 128 [message] => Unterminated comment starting line 2 [file] => Z:\ts1.php [line] => 25 ) error_reporting = 0 display_errors = 1 log_errors = 1 <code><span style="color: #000000"> <span style="color: #0000BB"><?php <br /></span><span style="color: #FF9900">/* Broken comment <br /></span> </span> </code> Last error is for highlight_string() if it is on line 19 : Array ( [type] => 128 [message] => Unterminated comment starting line 2 [file] => Z:\ts1.php [line] => 19 ) <code><span style="color: #000000"> <span style="color: #0000BB"><?php <br /></span><span style="color: #FF9900">/* Broken comment <br /></span> </span> </code> Last error is for highlight_file() if it is on line 25 : Array ( [type] => 128 [message] => Unterminated comment starting line 2 [file] => Z:\ts1.php [line] => 25 ) error_reporting = 0 display_errors = 0 log_errors = 0 <code><span style="color: #000000"> <span style="color: #0000BB"><?php <br /></span><span style="color: #FF9900">/* Broken comment <br /></span> </span> </code> Last error is for highlight_string() if it is on line 19 : Array ( [type] => 128 [message] => Unterminated comment starting line 2 [file] => Z:\ts1.php [line] => 19 ) <code><span style="color: #000000"> <span style="color: #0000BB"><?php <br /></span><span style="color: #FF9900">/* Broken comment <br /></span> </span> </code> Last error is for highlight_file() if it is on line 25 : Array ( [type] => 128 [message] => Unterminated comment starting line 2 [file] => Z:\ts1.php [line] => 25 ) 1309342054 Last error is for mktime() if it is on line 43 : Array ( [type] => 2048 [message] => mktime(): You should be using the time() function instead [file] => Z:\ts1.php [line] => 43 )