"(PHPUnit) PHP fatal error: Uncaught error: Call to undefined function each()"

Question

First, I got a warning and a fatal error. Warning:

Warning: "continue" targeting switch is equivalent to "break". Did you mean to use "continue 2"?

Then I replaced continue with break and the warning disappeared. But even after replacing, the fatal error still occurs. Fatal error:

PHP Fatal error: Undefined function each() was called at line 80 of D:xamppphppearPHPUnitUtilGetopt.php
Stack trace:
#0 D:xamppphppearPHPUnitTextUICommand.php(242): PHPUnit_Util_Getopt::getopt(Array, 'd:c:hv', Array)
#1 D:xamppphppearPHPUnitTextUICommand.php(138): PHPUnit_TextUI_Command->handleArguments(Array)
#2 D:xamppphppearPHPUnitTextUICommand.php(129): PHPUnit_TextUI_Command->run(Array, true)
#3 D:xamppphpphpunit(46): PHPUnit_TextUI_Command::main()
#4 {main}
  Throws at line 80 of D:xamppphppearPHPUnitUtilGetopt.php

Fatal error: Undefined function each() called in D:xamppphppearPHPUnitUtilGetopt.php on line 80
Stack trace:
#0 D:xamppphppearPHPUnitTextUICommand.php(242): PHPUnit_Util_Getopt::getopt(Array, 'd:c:hv', Array)
#1 D:xamppphppearPHPUnitTextUICommand.php(138): PHPUnit_TextUI_Command->handleArguments(Array)
#2 D:xamppphppearPHPUnitTextUICommand.php(129): PHPUnit_TextUI_Command->run(Array, true)
#3 D:xamppphpphpunit(46): PHPUnit_TextUI_Command::main()

Lines 77-83 of Getopt.php

reset($args);
array_map('trim', $args);

while (list($i, $arg) = each($args)) {
    if ($arg == '') {
        continue;
}

I'm using PHP 8.0.1 and PHPUnit 9 (at least I think so since I can't check with the command and I downloaded it after February 7th)

Answer 1

I'm no expert on PHPUnit, but the "each" function is no longer supported in PHP 8

Quoted from PHP official website

Maybe the PHPUnit version you are using is not adapted to PHP 8. If possible, please check the version and then refer to PHPUnit version support