raphael75

It turned out to be a non-breaking space that was on the line ($b == false) && after the 2nd &. Removing that fixed the issue.

Here is my PHP code: <?php $a = 76; $b = true; $c = 0; $d = 500; $check = ( ($a > 0) && ($b == false) && ($c == 0) && ($d > 0) ); echo '[' . $check . ']' . "\n"; //echoes [] // ------------------------------- $a = 76; $b = false; $c = 0; $d = 500; $check = ( ($a > 0) && ($b == false) && ($c == 0) && ($d > 0) ); echo '[' . $check . ']' . "\n"; ?> This generates this error: PHP Fatal error: Uncaught Error: Call to undefined function () in /home/abc/code/php_test/test_boolean.php:26 Stack trace: #0 {main} thrown in /home/abc/code/php_test/test_boolean.php on line 26 I can't figure out why this error is occurring. Why does changing $b to false make it think it's a function call? I get this error if I run it in the browser or on the command line. However, testing it in different online php testers doesn't cause an error and produces the expected output. I don't know why this is causing an error on my local. I tried with both php7.3.31 and php 8.0.12

Zip should support 64-bit archives. If you can't get it to work, you could try using WinRAR for Linux and call it from exec().