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wordpress-azure/wp-includes/class-wp-error.php at master · TeodoroJr1968/wordpress-azure · GitHub
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<?php
/**
* WordPress Error API.
*
* @package WordPress
*/
/**
* WordPress Error class.
*
* Container for checking for WordPress errors and error messages. Return
* WP_Error and use is_wp_error() to check if this class is returned. Many
* core WordPress functions pass this class in the event of an error and
* if not handled properly will result in code errors.
*
* @since 2.1.0
*/
class
WP_Error {
/**
* Stores the list of errors.
*
* @since 2.1.0
* @var array
*/
public
$
errors
=
array
();
/**
* Stores the most recently added data for each error code.
*
* @since 2.1.0
* @var array
*/
public
$
error_data
=
array
();
/**
* Stores previously added data added for error codes, oldest-to-newest by code.
*
* @since 5.6.0
* @var array[]
*/
protected
$
additional_data
=
array
();
/**
* Initializes the error.
*
* If `$code` is empty, the other parameters will be ignored.
* When `$code` is not empty, `$message` will be used even if
* it is empty. The `$data` parameter will be used only if it
* is not empty.
*
* Though the class is constructed with a single error code and
* message, multiple codes can be added using the `add()` method.
*
* @since 2.1.0
*
* @param string|int $code Error code.
* @param string $message Error message.
* @param mixed $data Optional. Error data.
*/
public
function
__construct
(
$
code
=
''
,
$
message
=
''
,
$
data
=
''
) {
if
(
empty
(
$
code
) ) {
return
;
}
$
this
->
add
(
$
code
,
$
message
,
$
data
);
}
/**
* Retrieves all error codes.
*
* @since 2.1.0
*
* @return array List of error codes, if available.
*/
public
function
get_error_codes
() {
if
( !
$
this
->
has_errors
() ) {
return
array
();
}
return
array_keys
(
$
this
->
errors
);
}
/**
* Retrieves the first error code available.
*
* @since 2.1.0
*
* @return string|int Empty string, if no error codes.
*/
public
function
get_error_code
() {
$
codes
=
$
this
->
get_error_codes
();
if
(
empty
(
$
codes
) ) {
return
''
;
}
return
$
codes
[
0
];
}
/**
* Retrieves all error messages, or the error messages for the given error code.
*
* @since 2.1.0
*
* @param string|int $code Optional. Retrieve messages matching code, if exists.
* @return array Error strings on success, or empty array if there are none.
*/
public
function
get_error_messages
(
$
code
=
''
) {
// Return all messages if no code specified.
if
(
empty
(
$
code
) ) {
$
all_messages
=
array
();
foreach
( (
array
)
$
this
->
errors
as
$
code
=>
$
messages
) {
$
all_messages
=
array_merge
(
$
all_messages
,
$
messages
);
}
return
$
all_messages
;
}
if
(
isset
(
$
this
->
errors
[
$
code
] ) ) {
return
$
this
->
errors
[
$
code
];
}
else
{
return
array
();
}
}
/**
* Gets a single error message.
*
* This will get the first message available for the code. If no code is
* given then the first code available will be used.
*
* @since 2.1.0
*
* @param string|int $code Optional. Error code to retrieve message.
* @return string The error message.
*/
public
function
get_error_message
(
$
code
=
''
) {
if
(
empty
(
$
code
) ) {
$
code
=
$
this
->
get_error_code
();
}
$
messages
=
$
this
->
get_error_messages
(
$
code
);
if
(
empty
(
$
messages
) ) {
return
''
;
}
return
$
messages
[
0
];
}
/**
* Retrieves the most recently added error data for an error code.
*
* @since 2.1.0
*
* @param string|int $code Optional. Error code.
* @return mixed Error data, if it exists.
*/
public
function
get_error_data
(
$
code
=
''
) {
if
(
empty
(
$
code
) ) {
$
code
=
$
this
->
get_error_code
();
}
if
(
isset
(
$
this
->
error_data
[
$
code
] ) ) {
return
$
this
->
error_data
[
$
code
];
}
}
/**
* Verifies if the instance contains errors.
*
* @since 5.1.0
*
* @return bool If the instance contains errors.
*/
public
function
has_errors
() {
if
( !
empty
(
$
this
->
errors
) ) {
return
true
;
}
return
false
;
}
/**
* Adds an error or appends an additional message to an existing error.
*
* @since 2.1.0
*
* @param string|int $code Error code.
* @param string $message Error message.
* @param mixed $data Optional. Error data.
*/
public
function
add
(
$
code
,
$
message
,
$
data
=
''
) {
$
this
->
errors
[
$
code
][] =
$
message
;
if
( !
empty
(
$
data
) ) {
$
this
->
add_data
(
$
data
,
$
code
);
}
/**
* Fires when an error is added to a WP_Error object.
*
* @since 5.6.0
*
* @param string|int $code Error code.
* @param string $message Error message.
* @param mixed $data Error data. Might be empty.
* @param WP_Error $wp_error The WP_Error object.
*/
do_action
(
'
wp_error_added
'
,
$
code
,
$
message
,
$
data
,
$
this
);
}
/**
* Adds data to an error with the given code.
*
* @since 2.1.0
* @since 5.6.0 Errors can now contain more than one item of error data. {@see WP_Error::$additional_data}.
*
* @param mixed $data Error data.
* @param string|int $code Error code.
*/
public
function
add_data
(
$
data
,
$
code
=
''
) {
if
(
empty
(
$
code
) ) {
$
code
=
$
this
->
get_error_code
();
}
if
(
isset
(
$
this
->
error_data
[
$
code
] ) ) {
$
this
->
additional_data
[
$
code
][] =
$
this
->
error_data
[
$
code
];
}
$
this
->
error_data
[
$
code
] =
$
data
;
}
/**
* Retrieves all error data for an error code in the order in which the data was added.
*
* @since 5.6.0
*
* @param string|int $code Error code.
* @return mixed[] Array of error data, if it exists.
*/
public
function
get_all_error_data
(
$
code
=
''
) {
if
(
empty
(
$
code
) ) {
$
code
=
$
this
->
get_error_code
();
}
$
data
=
array
();
if
(
isset
(
$
this
->
additional_data
[
$
code
] ) ) {
$
data
=
$
this
->
additional_data
[
$
code
];
}
if
(
isset
(
$
this
->
error_data
[
$
code
] ) ) {
$
data
[] =
$
this
->
error_data
[
$
code
];
}
return
$
data
;
}
/**
* Removes the specified error.
*
* This function removes all error messages associated with the specified
* error code, along with any error data for that code.
*
* @since 4.1.0
*
* @param string|int $code Error code.
*/
public
function
remove
(
$
code
) {
unset(
$
this
->
errors
[
$
code
] );
unset(
$
this
->
error_data
[
$
code
] );
unset(
$
this
->
additional_data
[
$
code
] );
}
/**
* Merges the errors in the given error object into this one.
*
* @since 5.6.0
*
* @param WP_Error $error Error object to merge.
*/
public
function
merge_from
(
WP_Error
$
error
) {
static
::
copy_errors
(
$
error
,
$
this
);
}
/**
* Exports the errors in this object into the given one.
*
* @since 5.6.0
*
* @param WP_Error $error Error object to export into.
*/
public
function
export_to
(
WP_Error
$
error
) {
static
::
copy_errors
(
$
this
,
$
error
);
}
/**
* Copies errors from one WP_Error instance to another.
*
* @since 5.6.0
*
* @param WP_Error $from The WP_Error to copy from.
* @param WP_Error $to The WP_Error to copy to.
*/
protected
static
function
copy_errors
(
WP_Error
$
from
,
WP_Error
$
to
) {
foreach
(
$
from
->
get_error_codes
()
as
$
code
) {
foreach
(
$
from
->
get_error_messages
(
$
code
)
as
$
error_message
) {
$
to
->
add
(
$
code
,
$
error_message
);
}
foreach
(
$
from
->
get_all_error_data
(
$
code
)
as
$
data
) {
$
to
->
add_data
(
$
data
,
$
code
);
}
}
}
}
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