无法修复“期望参数2为数组，null给定”错误

问题描述：

I have this errors in my code. Can someone help me?

Warning: array_reduce() expects parameter 1 to be array, null given in /srv/disk1/2317571/www/loquium.atwebpages.com/wp-content/themes/foodica/functions/customizer/helpers-fonts.php on line 506

Warning: array_key_exists() expects parameter 2 to be array, null given in /srv/disk1/2317571/www/loquium.atwebpages.com/wp-content/themes/foodica/functions/customizer/helpers-fonts.php on line 192

Warning: array_key_exists() expects parameter 2 to be array, null given in /srv/disk1/2317571/www/loquium.atwebpages.com/wp-content/themes/foodica/functions/customizer/helpers-fonts.php on line 192

Warning: array_key_exists() expects parameter 2 to be array, null given in /srv/disk1/2317571/www/loquium.atwebpages.com/wp-content/themes/foodica/functions/customizer/helpers-fonts.php on line 192

Warning: array_key_exists() expects parameter 2 to be array, null given in /srv/disk1/2317571/www/loquium.atwebpages.com/wp-content/themes/foodica/functions/customizer/helpers-fonts.php on line 192

Warning: array_key_exists() expects parameter 2 to be array, null given in /srv/disk1/2317571/www/loquium.atwebpages.com/wp-content/themes/foodica/functions/customizer/helpers-fonts.php on line 192

Line 190 - 196

    // Verify that the font exists
    if ( array_key_exists( $font, $allowed_fonts ) ) {
        // Build the family name and variant string (e.g., "Open+Sans:regular,italic,700")
        $family[] = urlencode( $font . ':' . join( ',', foodica_choose_google_font_variants( $font, $allowed_fonts[ $font ]['variants'] ) ) );
    }
}

Line 503 - 506

        $transient = json_decode($transient, true);
        $transient = array_reduce($transient['items'], 'foodica_transform_google_fonts_array', array());
        return apply_filters('foodica_get_google_fonts_from_api', $transient);
    }
endif;

我的代码中出现此错误。有人可以帮助我吗？ p>

警告：array_reduce（）期望参数1为数组，在 /srv/disk1/2317571/www/loquium.atwebpages中给出null 第506行上的.com / wp-content / themes / foodica / functions / customizer / helpers-fonts.php p>

警告：array_key_exists（）期望参数2为数组，null \ n在第192行的 /srv/disk1/2317571/www/loquium.atwebpages.com/wp-content/themes/foodica/functions/customizer/helpers-fonts.php 中给出 p>

警告：array_key_exists（）期望参数2为数组，null 在 /srv/disk1/2317571/www/loquium.atwebpages.com/wp-content/themes/foodica/functions/customizer/helpers中给出第192行-fonts.php p>

警告：array_key_exists（）期望参数2为数组，null 在 / srv / disk1 / 2317571 / www / loquium中给出。第192行的atwebpages.com/wp-content/themes/foodica/functions/customizer/helpers-fonts.php p>

警告：array_key_exists（）期望参数2为数组，null 给予我第192行n /srv/disk1/2317571/www/loquium.atwebpages.com/wp-content/themes/foodica/functions/customizer/helpers-fonts.php p>

警告：array_key_exists（）期望参数2为数组，null 在 /srv/disk1/2317571/www/loquium.atwebpages.com/wp-content/themes/foodica/functions/customizer/helpers-fonts中给出第192行.php p> blockquote>

第190 - 196行 p>
  //验证字体是否存在 n if（array_key_exists（$ font，$ allowed_fonts））{
 //构建姓氏和变体字符串（例如，“Open + Sans：regular，italic，700”）
 $ family [] = urlencode（$ font  。  '：'。  join（'，'，foodica_choose_google_font_variants（$ font，$ allowed_fonts [$ font] ['variants']）））; 
} 
} 
  code>  pre> 
 
  Line  503  -  506  p> 
 
 
  $ transient = json_decode（$ transient，true）; 
 $ transient = array_reduce（$ transient ['items']，'foodica_transform_google_fonts_array'，array（）  ）; 
返回apply_filters（'foodica_get_google_fonts_from_api'，$ transient）; 
} 
endif; 
  code>  pre> 
  div>

答

Just use typecasting as shown below:

array_key_exists( $font, (array) $allowed_fonts );

无法修复“期望参数2为数组，null给定”错误

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