警告:array_keys()預計參數1是陣列,串中的線 /home/hennacur/public_html/shop/wp-content/themes/montezuma/includes/image_meta.php 給出34警告在PHP代碼
警告:的foreach()在 /home/hennacur/public_html/shop/wp-content/themes/montezuma/includes/image_meta.php 上線提供參數無效40
function bfa_image_size() {
$meta = wp_get_attachment_metadata();
echo $meta['width']. '×' . $meta['height'];
}
function bfa_image_meta($args = '') {
$defaults = array(
'keys' => '',
'before' => '',
'after' => '',
'item_before' => '',
'item_after' => '',
'item_sep' => ' · ',
'key_before' => '',
'key_after' => ': ',
'value_before' => '',
'value_after' => '',
'display_empty' => FALSE
);
$r = wp_parse_args($args, $defaults);
extract($r, EXTR_SKIP);
$meta = wp_get_attachment_metadata();
$string_array = array();
// All keys, alphabetically sorted, as provided by wp_get_attachment_metadata()
if($keys == '') {
$array_keys = array_keys($meta['image_meta']); ---***line34***
// Only keys specificed in parameter:
} else {
$array_keys = array_map('trim', explode(',', $keys));
}
foreach($array_keys as $key) { --***line 40***
$value = $meta['image_meta'][$key];
if($display_empty === TRUE || ($value != '' && $value != '0')) {
if($key == 'created_timestamp')
// Transform timestamp into readable date, based on default WP date/time settings:
$value = date(get_option('date_format') . ' - ' . get_option('time_format'), $value);
// Prettify key
$key = ucwords(str_replace('_', ' ', $key));
$key = $key == 'Iso' ? 'ISO' : $key;
$key = str_replace(
array(
'Aperture',
'Credit',
'Camera',
'Caption',
'Created Timestamp',
'Copyright',
'Focal Length',
'ISO',
'Shutter Speed',
'Title'
),
array(
__('Aperture', 'montezuma'),
__('Credit', 'montezuma'),
__('Camera', 'montezuma'),
__('Caption', 'montezuma'),
__('Timestamp', 'montezuma'),
__('Copyright', 'montezuma'),
__('Focal Length', 'montezuma'),
__('ISO', 'montezuma'),
__('Shutter Speed', 'montezuma'),
__('Title', 'montezuma')
),
$key
);
我有上面的代碼。什麼可能是出現警告的原因?
阻止將您的變量命名爲保留字 - 這只是一個良好的習慣,將來會讓您遠離錯誤。並添加'var_dump($ meta ['image_meta']);'以查看$ meta ['image_meta']的真實含義幷包含 –