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<?php

[0] Fix | Delete

global $PHP_SELF;

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if ( is_admin() ) {

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// wp-admin pages are checked more carefully

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if ( is_network_admin() )

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preg_match('#/wp-admin/network/?(.*?)$#i', $PHP_SELF, $self_matches);

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elseif ( is_user_admin() )

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preg_match('#/wp-admin/user/?(.*?)$#i', $PHP_SELF, $self_matches);

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else

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preg_match('#/wp-admin/?(.*?)$#i', $PHP_SELF, $self_matches);

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$pagenow = $self_matches[1];

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$pagenow = trim($pagenow, '/');

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$pagenow = preg_replace('#\?.*?$#', '', $pagenow);

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if ( '' === $pagenow || 'index' === $pagenow || 'index.php' === $pagenow ) {

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$pagenow = 'index.php';

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} else {

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preg_match('#(.*?)(/|$)#', $pagenow, $self_matches);

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$pagenow = strtolower($self_matches[1]);

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if ( '.php' !== substr($pagenow, -4, 4) )

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$pagenow .= '.php'; // for Options +Multiviews: /wp-admin/themes/index.php (themes.php is queried)

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}

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} else {

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if ( preg_match('#([^/]+\.php)([?/].*?)?$#i', $PHP_SELF, $self_matches) )

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$pagenow = strtolower($self_matches[1]);

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else

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$pagenow = 'index.php';

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}

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unset($self_matches);

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