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WordPress functionality is broken in Plesk after changing domain PHP version to 8.0: Uncaught TypeError: implode(): Argument #2 ($array) must be of type ?array,

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Leonid Gukhman
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Plesk for Linux kb: bug ext: wptk Ideal ABT: Group B

Applicable to:

  • Plesk for Linux

Symptoms

  • PHP 8.0 is selected for the domain.

  • Cannot install WordPress or a plugin via WordPress Toolkit or log in to WordPress with the following error:

    CONFIG_TEXT: PHP Fatal error: Uncaught TypeError:
    implode(): Argument #2 ($array) must be of type ?array, string given in /opt/psa/admin/plib/modules/wp-toolkit/vendor/wp-cli/wp-cli/php/WP_CLI/DocParser.php:75

  • WordPress instance in Plesk may be marked as broken.

Cause

A side effect of known product issue EXTWPTOOLK-2040.

Resolution

Until the issue is fixed - switch PHP handler to the version lower than 8.0, as a workaround.

Comments

1 comment

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  • Avatar
    Adrian

    When this error will be solved and when the Imagick function will be added in PHP 8?

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