3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo "Start Test, the data follows.<br><br>\n"; if ($fp = fopen("text.txt", "r")) { $contents = fread($fp, filesize("text.txt")); echo "$contents"; fclose($fp); } echo "\n<br><br>The data is about to be passed to preg_match(). If you do not see the word 'Success' after this line, the program has crashed.<br>\n"; $truefalsetest=preg_match('%^(?: [\x09\x0A\x0D\x20-\x7E] # ASCII | [\xC2-\xDF][\x80-\xBF] # non-overlong 2-byte | \xE0[\xA0-\xBF][\x80-\xBF] # excluding overlongs | [\xE1-\xEC\xEE\xEF][\x80-\xBF]{2} # straight 3-byte | \xED[\x80-\x9F][\x80-\xBF] # excluding surrogates | \xF0[\x90-\xBF][\x80-\xBF]{2} # planes 1-3 | [\xF1-\xF3][\x80-\xBF]{3} # planes 4-15 | \xF4[\x80-\x8F][\x80-\xBF]{2} # plane 16 )*$%xs', $contents); echo "Success. Return value of preg_match() = $truefalsetest."; ?>
Output for 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Start Test, the data follows.<br><br> Warning: fopen(): open_basedir restriction in effect. File(text.txt) is not within the allowed path(s): (/tmp:/in:/etc) in /in/pheTX on line 3 Warning: fopen(text.txt): Failed to open stream: Operation not permitted in /in/pheTX on line 3 <br><br>The data is about to be passed to preg_match(). If you do not see the word 'Success' after this line, the program has crashed.<br> Warning: Undefined variable $contents in /in/pheTX on line 18 Deprecated: preg_match(): Passing null to parameter #2 ($subject) of type string is deprecated in /in/pheTX on line 9 Success. Return value of preg_match() = 1.
Output for 8.1.0 - 8.1.27
Start Test, the data follows.<br><br> Warning: fopen(): open_basedir restriction in effect. File(text.txt) is not within the allowed path(s): (/tmp:/in:/etc) in /in/pheTX on line 3 Warning: fopen(text.txt): Failed to open stream: Operation not permitted in /in/pheTX on line 3 <br><br>The data is about to be passed to preg_match(). If you do not see the word 'Success' after this line, the program has crashed.<br> Warning: Undefined variable $contents in /in/pheTX on line 18 Deprecated: preg_match(): Passing null to parameter #2 ($subject) of type string is deprecated in /in/pheTX on line 18 Success. Return value of preg_match() = 1.
Output for 8.0.14 - 8.0.30
Start Test, the data follows.<br><br> Warning: fopen(): open_basedir restriction in effect. File(text.txt) is not within the allowed path(s): (/tmp:/in:/etc) in /in/pheTX on line 3 Warning: fopen(text.txt): Failed to open stream: Operation not permitted in /in/pheTX on line 3 <br><br>The data is about to be passed to preg_match(). If you do not see the word 'Success' after this line, the program has crashed.<br> Warning: Undefined variable $contents in /in/pheTX on line 18 Success. Return value of preg_match() = 1.
Output for 8.0.0 - 8.0.13
Start Test, the data follows.<br><br> Warning: fopen(text.txt): Failed to open stream: No such file or directory in /in/pheTX on line 3 <br><br>The data is about to be passed to preg_match(). If you do not see the word 'Success' after this line, the program has crashed.<br> Warning: Undefined variable $contents in /in/pheTX on line 18 Success. Return value of preg_match() = 1.
Output for 7.4.33
Start Test, the data follows.<br><br> Warning: fopen(text.txt): failed to open stream: No such file or directory in /in/pheTX on line 3 <br><br>The data is about to be passed to preg_match(). If you do not see the word 'Success' after this line, the program has crashed.<br> Notice: Undefined variable: contents in /in/pheTX on line 18 Success. Return value of preg_match() = 1.
Output for 7.4.26 - 7.4.32
Start Test, the data follows.<br><br> Warning: fopen(): open_basedir restriction in effect. File(text.txt) is not within the allowed path(s): (/tmp:/in:/etc) in /in/pheTX on line 3 Warning: fopen(text.txt): failed to open stream: Operation not permitted in /in/pheTX on line 3 <br><br>The data is about to be passed to preg_match(). If you do not see the word 'Success' after this line, the program has crashed.<br> Notice: Undefined variable: contents in /in/pheTX on line 18 Success. Return value of preg_match() = 1.
Output for 5.2.3 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.25
Start Test, the data follows.<br><br> Warning: fopen(text.txt): failed to open stream: No such file or directory in /in/pheTX on line 3 <br><br>The data is about to be passed to preg_match(). If you do not see the word 'Success' after this line, the program has crashed.<br> Success. Return value of preg_match() = 1.
Output for 4.4.3 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.2
Start Test, the data follows.<br><br> <br /> <b>Warning</b>: fopen(text.txt) [<a href='function.fopen'>function.fopen</a>]: failed to open stream: No such file or directory in <b>/in/pheTX</b> on line <b>3</b><br /> <br><br>The data is about to be passed to preg_match(). If you do not see the word 'Success' after this line, the program has crashed.<br> Success. Return value of preg_match() = 1.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.2
Start Test, the data follows.<br><br> <br /> <b>Warning</b>: fopen(text.txt): failed to open stream: No such file or directory in <b>/in/pheTX</b> on line <b>3</b><br /> <br><br>The data is about to be passed to preg_match(). If you do not see the word 'Success' after this line, the program has crashed.<br> Success. Return value of preg_match() = 1.
Output for 4.3.0 - 4.3.1
Start Test, the data follows.<br><br> <br /> <b>Warning</b>: fopen(text.txt) [<a href='http://www.php.net/function.fopen'>function.fopen</a>]: failed to create stream: No such file or directory in <b>/in/pheTX</b> on line <b>3</b><br /> <br><br>The data is about to be passed to preg_match(). If you do not see the word 'Success' after this line, the program has crashed.<br> Success. Return value of preg_match() = 1.

preferences:
299.59 ms | 402 KiB | 464 Q