使用Kusaba上传大型GIFS

Question

这并不总是发生。我有时可以上传相同的GIF，有时会收到这个错误，看起来几乎是随机的。

Warning: Invalid argument supplied for foreach() in /webroot/i/n/*001/*.org/www/inc/classes/board-post.class.php on line 81
Warning: Cannot modify header information - headers already sent by (output started at /webroot/i/n/*/*.org/www/inc/classes/board-post.class.php:81) in /webroot/i/n/*/*.org/www/board.php on line 343
Warning: Cannot modify header information - headers already sent by (output started at /webroot/i/n/*/*.org/www/inc/classes/board-post.class.php:81) in /webroot/i/n/*/*.org/www/board.php on line 347
Warning: Cannot modify header information - headers already sent by (output started at /webroot/i/n/*/*.org/www/inc/classes/board-post.class.php:81) in /webroot/i/n/*/*.org/www/board.php on line 350
Warning: Invalid argument supplied for foreach() in /webroot/i/n/*/*.org/www/inc/func/posts.php on line 249
Warning: Invalid argument supplied for foreach() in /webroot/i/n/*/*.org/www/inc/classes/board-post.class.php on line 136
Warning: Invalid argument supplied for foreach() in /webroot/i/n/*/*.org/www/inc/classes/board-post.class.php on line 163
Warning: Invalid argument supplied for foreach() in /webroot/i/n/*/*.org/www/inc/func/fetching.php on line 27
Warning: Invalid argument supplied for foreach() in /webroot/i/n/*/*.org/www/inc/classes/board-post.class.php on line 343
Warning: Invalid argument supplied for foreach() in /webroot/i/n/*/*.org/www/inc/classes/board-post.class.php on line 443
Warning: Invalid argument supplied for foreach() in /webroot/i/n/*/*.org/www/inc/func/fetching.php on line 27
Warning: Cannot modify header information - headers already sent by (output started at /webroot/i/n/*/*.org/www/inc/classes/board-post.class.php:81) in /webroot/i/n/*/*.org/www/inc/func/misc.php on line 76

Answer 1

某处您使用的变量不是foreach语句中的数组，例如：

$foo = 123;
foreach ($foo as $bar)

这会抛出Invalid argument supplied for foreach()警告。更好地检查你的变量，以确保它们是预期的阵列。

抛出此警告并输出阻止发送标头的事实，这会导致另一个Cannot modify header information警告。

Answer 2

如果要遍历$results数组，则应编写

foreach ($results as $key=>$value)

而不是

foreach ($results[0] as $key=>$value)

除非$results[0]本身是一个数组，在这种情况下$results将是一个矩阵（数组数组）。