1.2.928. PHP 8.1 Resources Turned Into Objects

Multiple PHP native functions now return objects, not resources. Any check on those values with is_resource() is now going to fail.

The affected functions are the following :

• finfo_open()

• ftp_connect()

• imap_open()

• ldap_connect()

• ldap_list()

• ldap_search()

• ldap_first_entry()

• ldap_next_entry ()

• ldap_read()

• pg_connect()

• pg_pconnect()

• pg_query()

• pg_execute ()

• pg_lo_create()

• pspell_config_create()

• pspell_new()

• pspell_new_personal()

• pspell_new_config()

<?php

$pspell = new pspell_new(en, , , ,
                     (PSPELL_FAST|PSPELL_RUN_TOGETHER));
var_dump(is_resource($pspell)); // true in PHP 8.0,
                                                         // false in PHP 8.1

?>

See also UPGRADING PHP 8.1.

1.2.928.1. Suggestions

• Change the condition from is_resource() to instanceof

1.2.928.2. Specs

Short name	Php/Php81RemovesResources
Rulesets	All, Changed Behavior, CompatibilityPHP80
Exakat since	2.2.0
PHP Version	All
Severity	Major
Time To Fix	Quick (30 mins)
Changed Behavior	PHP 8.1 - More
Precision	Very high
Features	resource
Available in	Entreprise Edition, Exakat Cloud