phpunit: redirect error_log message to temp file so they are not printed to console

This is for any logging part that logs to emergency where emergency logging is
set to log to the error_log too

4dev/tests/Logging/CoreLibsLoggingErrorMessagesTest.php

@@ -105,11 +105,15 @@ final class CoreLibsLoggingErrorMessagesTest extends TestCase
 			'log_folder' => self::LOG_FOLDER,
 			'log_level' => Level::Error,
 		]);
+		$errorLogTmpfile = tmpfile();
+		$errorLogLocationBackup = ini_set('error_log', stream_get_meta_data($errorLogTmpfile)['uri']);
 		$em = new \CoreLibs\Logging\ErrorMessage($log);
 		$em->setMessage(
 			$level,
 			$str
 		);
+		// for exceptions if log level is set to catch them
+		$error_log_content = stream_get_contents($errorLogTmpfile);
 		$this->assertEquals(
 			[
 				'level' => $expected,
@@ -377,6 +381,8 @@ final class CoreLibsLoggingErrorMessagesTest extends TestCase
 		?bool $log_warning,
 		string $expected
 	): void {
+		$errorLogTmpfile = tmpfile();
+		$errorLogLocationBackup = ini_set('error_log', stream_get_meta_data($errorLogTmpfile)['uri']);
 		$log = new \CoreLibs\Logging\Logging([
 			'log_file_id' => 'testErrorMessagesLogError',
 			'log_folder' => self::LOG_FOLDER,
@@ -392,6 +398,9 @@ final class CoreLibsLoggingErrorMessagesTest extends TestCase
 			log_error: $log_error,
 			log_warning: $log_warning
 		);
+		ini_set('error_log', $errorLogLocationBackup);
+		// for exceptions if log level is set to catch them
+		$error_log_content = stream_get_contents($errorLogTmpfile);
 		$file_content = '';
 		if (is_file($log->getLogFolder() . $log->getLogFile())) {
 			$file_content = file_get_contents(
@@ -447,6 +456,8 @@ final class CoreLibsLoggingErrorMessagesTest extends TestCase
 			'log_level' => Level::Debug,
 			'log_per_run' => true
 		]);
+		$errorLogTmpfile = tmpfile();
+		$errorLogLocationBackup = ini_set('error_log', stream_get_meta_data($errorLogTmpfile)['uri']);
 		$em = new \CoreLibs\Logging\ErrorMessage($log);
 		$em->setErrorMsg(
 			$id,
@@ -456,6 +467,9 @@ final class CoreLibsLoggingErrorMessagesTest extends TestCase
 			log_error: $log_error,
 			log_warning: $log_warning
 		);
+		ini_set('error_log', $errorLogLocationBackup);
+		// for exceptions if log level is set to catch them
+		$error_log_content = stream_get_contents($errorLogTmpfile);
 		$file_content = '';
 		if (is_file($log->getLogFolder() . $log->getLogFile())) {
 			$file_content = file_get_contents(