Bug #79978 [NEW]: serialize() on an object returning a string that can't be unserialized()
From: cdtreeks at gmail dot com
Operating system: Amazon Linux 2
PHP version: 7.4.9
Package: SPL related
Bug Type: Bug
Bug description:serialize() on an object returning a string that can't be unserialized()
Description:
------------
Completely standard PHP install on the latest PHP 7.4.9 version and
we're experiencing issues with serialize() returning strings that can't
be unserialized().
Ever occurrence we've seen have been from a single object, but we can't
find anything specific about object itself.
All malformed strings returned match the following format:
r:[0-9]{3};
Examples include:
r:453;
r:501;
r:549;
When trying to unserialize, we get the following error:
unserialize(): Error at offset 6 of 6 bytes
We've just recently migrated to PHP 7.4 from 7.2 and had never observed
this behaviour previously and have tested the same logic there since
with no issue apparent so this appear to be a bug that's come in since
PHP 7.2.27.
I'd try and show you an example of the object, but that's a little
tricky when I can't serialize it - sorry!
Test script:
---------------
I don't expect this to help, but as I'm not able to serialize an example
of the objects failing, here's a print_r() of it.
field_string Object ( [minlen] => 0 [maxlen] => 255 [raw] => [value] =>
[values] => [hidden] => [in_form] => [disabled] => [readonly] =>
[pre_label_text] => [pre_text] => [post_text] => [tooltip_message] =>
[default] => [class] => [id] => [attributes] => Array ( ) [wrapper_tag]
=> [li_attributes] => [name] => title [required] => 1 [in_database] => 1
[fieldset] => [is_form_field] => 1 [parent_form] => membership Object (
[cms_table] => cms_table Object ( [id_name] => mid [table_mid] => 208
[table_name] => membership [soft_delete] => [module_title] =>
Memberships [module_name] => membership [shared_module] => 0
[shared_modules] => Array ( ) [database] => [has_cms_fields] => 1
[module_title_singular] => Membership [title_field] => title
[publish_dates] => 0 [linked_mid] => 0 [shadow_mid] => 0
[live_field:protected] => live [deleted_field:protected] => deleted
[show_validation_error_messages_above] => [show_legends] => [id] =>
[attributes] => Array ( ) [bootstrapped] => [legend_tag] => [enc_type]
=> [has_submit] => [submit_label] => [submit_class] =>
[submit_in_fieldset] => [pre_fields_text] => [post_fields_text] =>
[pre_submit_text] => [post_submit_text] => [validation_errors] =>
[validation_err_msg] => [show_labels_as_placeholder] =>
[remove_unset_fields_from_form] => [legend_attributes] =>
[maximum_errors_to_show] => [fields:protected] => Array ( [title] =>
field_string Object *RECURSION* [fn] => field_filename Object ( [minlen]
=> 0 [maxlen] => 255 [raw] => [value] => [values] => [hidden] =>
[in_form] => [disabled] => [readonly] => [pre_label_text] => [pre_text]
=> [post_text] => [tooltip_message] => [default] => [class] => [id] =>
[attributes] => Array ( ) [wrapper_tag] => [li_attributes] => [name] =>
fn [required] => [in_database] => 1 [fieldset] => [is_form_field] => 1
[parent_form] => membership Object *RECURSION* [label_title] => Filename
[show_label] => 1 [show_required_asterix] => [error_label] =>
[validation_error_prefix] => [source_data] => table_field Object ( [mid]
=> 208 [fid] => 2 [ftid] => filename [ulid] => 3 [linkmid] => 0
[linkfid] => 0 [fieldset] => [name] => fn [title] => Filename [required]
=> [editable] => 1 [searchable] => 0 [tablename] => membership [default]
=> [hint] => [source_table] => [shadow_data] => 0 [options] => ) )
[points] => field_int Object ( [min] => 0 [max] => 9223372036854775807
[show_zero] => [allow_null] => 1 [add_class_core_field_int] => 1 [value]
=> [values] => [hidden] => [in_form] => [disabled] => [readonly] =>
[pre_label_text] => [pre_text] => [post_text] => [tooltip_message] =>
[default] => [class] => [id] => [attributes] => Array ( ) [wrapper_tag]
=> [li_attributes] => [name] => points [required] => [in_database] => 1
[fieldset] => [is_form_field] => 1 [parent_form] => membership Object
*RECURSION* [label_title] => Points [show_label] => 1
[show_required_asterix] => [error_label] => [validation_error_prefix] =>
[source_data] => table_field Object ( [mid] => 208 [fid] => 3 [ftid] =>
integer [ulid] => 3 [linkmid] => 0 [linkfid] => 0 [fieldset] => [name]
=> points [title] => Points [required] => [editable] => 1 [searchable]
=> 0 [tablename] => membership [default] => [hint] => [source_table] =>
[shadow_data] => 0 [options] => ) ) [perks] => field_json Object (
[value] => [values] => [hidden] => [in_form] => [disabled] => [readonly]
=> [pre_label_text] => [pre_text] => [post_text] => [tooltip_message] =>
[default] => [class] => [id] => [attributes] => Array ( ) [wrapper_tag]
=> [li_attributes] => [name] => perks [required] => [in_database] => 1
[fieldset] => [is_form_field] => 1 [parent_form] => membership Object
*RECURSION* [label_title] => Perks [show_label] => 1
[show_required_asterix] => [error_label] => [validation_error_prefix] =>
[source_data] => table_field Object ( [mid] => 208 [fid] => 4 [ftid] =>
json [ulid] => 3 [linkmid] => 0 [linkfid] => 0 [fieldset] => [name] =>
perks [title] => Perks [required] => [editable] => 1 [searchable] => 0
[tablename] => membership [default] => [hint] => [source_table] =>
[shadow_data] => 0 [options] => { "fields": [ { "title": "Perk",
"type":
"string" } ] } ) ) [image_5] => field_image Object ( [fid] => 5 [types]
=> Array ( [cms] => jpg [t] => png [s] => png ) [image_module] =>
membership [uploadify] => [uploadify_options] => Array ( ) [value] =>
[values] => [hidden] => [in_form] => [disabled] => [readonly] =>
[pre_label_text] => [pre_text] => [post_text] => [tooltip_message] =>
[default] => [class] => [id] => [attributes] => Array ( ) [wrapper_tag]
=> [li_attributes] => [name] => image_5 [required] => [in_database] => 1
[fieldset] => [is_form_field] => 1 [parent_form] => membership Object
*RECURSION* [label_title] => Image [show_label] => 1
[show_required_asterix] => [error_label] => [validation_error_prefix] =>
[source_data] => table_field Object ( [mid] => 208 [fid] => 5 [ftid] =>
image [ulid] => 3 [linkmid] => 0 [linkfid] => 0 [fieldset] => [name] =>
[title] => Image [required] => [editable] => 1 [searchable] => 0
[tablename] => membership [default] => [hint] => [source_table] =>
[shadow_data] => 0 [options] => [image_types] => Array ( [cms] => jpg
[t] => png [s] => png ) ) ) [monthly_cashback_percentage] => field_float
Object ( [min] => 0 [max] => -1 [decimal_places] => 2 [allow_null] => 1
[value] => [values] => [hidden] => [in_form] => [disabled] => [readonly]
=> [pre_label_text] => [pre_text] => [post_text] => [tooltip_message] =>
[default] => [class] => [id] => [attributes] => Array ( ) [wrapper_tag]
=> [li_attributes] => [name] => monthly_cashback_percentage [required]
=> [in_database] => 1 [fieldset] => [is_form_field] => 1 [parent_form]
=> membership Object *RECURSION* [label_title] => Monthly cashback
percentage [show_label] => 1 [show_required_asterix] => [error_label] =>
[validation_error_prefix] => [source_data] => table_field Object ( [mid]
=> 208 [fid] => 6 [ftid] => dec [ulid] => 2 [linkmid] => 0 [linkfid] =>
0 [fieldset] => [name] => monthly_cashback_percentage [title] => Monthly
cashback percentage [required] => [editable] => 1 [searchable] => 0
[tablename] => membership [default] => [hint] => [source_table] =>
[shadow_data] => 0 [options] => ) ) ) [select_fields:protected] => Array
( ) [multi_select_fields:protected] => Array ( )
[image_fields:protected] => Array ( [image_5] => field_image Object (
[fid] => 5 [types] => Array ( [cms] => jpg [t] => png [s] => png )
[image_module] => membership [uploadify] => [uploadify_options] => Array
( ) [value] => [values] => [hidden] => [in_form] => [disabled] =>
[readonly] => [pre_label_text] => [pre_text] => [post_text] =>
[tooltip_message] => [default] => [class] => [id] => [attributes] =>
Array ( ) [wrapper_tag] => [li_attributes] => [name] => image_5
[required] => [in_database] => 1 [fieldset] => [is_form_field] => 1
[parent_form] => membership Object *RECURSION* [label_title] => Image
[show_label] => 1 [show_required_asterix] => [error_label] =>
[validation_error_prefix] => [source_data] => table_field Object ( [mid]
=> 208 [fid] => 5 [ftid] => image [ulid] => 3 [linkmid] => 0 [linkfid]
=> 0 [fieldset] => [name] => [title] => Image [required] => [editable]
=> 1 [searchable] => 0 [tablename] => membership [default] => [hint] =>
[source_table] => [shadow_data] => 0 [options] => [image_types] => Array
( [cms] => jpg [t] => png [s] => png ) ) ) )
[fast_form_submission_spam_flag_time:protected] => 2000 [class] =>
form_core_default cms_table cf ) [get_titles] => [get_tables] =>
[get_linked_members] => [retrieve_deleted] => [retrieve_unlive] =>
[auto_typecast_field_validation_errors] => [is_deleted] => [is_live] =>
1 [was_deleted] => [was_live] => 1 [was_id] => 3 [was_parent_id] => 0
[ts] => 2020-07-03 08:05:26 [cms_time_from] => [cms_time_to] =>
[table_id_set] => [has_cms_fields:protected] =>
[local_field_copy:protected] => [original_values:protected] => Array (
[title] => Silver [fn] => silver [points] => 50000 [perks] =>
{"0":{"cms_field_1":"2% Monthly
cashback"},"1":{"cms_field_1":"Exclusive
Discount code every month"}} [image_5] => stdClass Object ( [_] =>
stdClass Object ( [cdn] => 1 [w] => 190 [h] => 190 [t] => png [ts] =>
1593759926 ) [cms] => stdClass Object ( [cdn] => 1 [w] => 130 [h] => 130
[t] => jpg [ts] => 1593759926 [tr] => ) [t] => stdClass Object ( [cdn]
=> 1 [w] => 100 [h] => 100 [t] => png [ts] => 1593759926 [tr] => 1 ) [s]
=> stdClass Object ( [cdn] => 1 [w] => 190 [h] => 190 [t] => png [ts] =>
1593759926 [tr] => 1 ) ) [monthly_cashback_percentage] => 2 [ts] =>
2020-07-03 08:05:26 [cms_created] => 2020-04-01 08:36:11 [parent_mid] =>
0 [mid] => 3 ) [show_validation_error_messages_above] => [show_legends]
=> [id] => [attributes] => Array ( ) [bootstrapped] => [legend_tag] =>
[enc_type] => [has_submit] => [submit_label] => [submit_class] =>
[submit_in_fieldset] => [pre_fields_text] => [post_fields_text] =>
[pre_submit_text] => [post_submit_text] => [validation_errors] =>
[validation_err_msg] => [show_labels_as_placeholder] =>
[remove_unset_fields_from_form] => [legend_attributes] =>
[maximum_errors_to_show] => [fields:protected] =>
[select_fields:protected] => [multi_select_fields:protected] =>
[image_fields:protected] =>
[fast_form_submission_spam_flag_time:protected] => 2000 [class] =>
form_core_default membership cf [module_name] => membership [mid] => 3
[title] => Silver [fn] => silver [points] => 50000 [perks] =>
{"0":{"cms_field_1":"2% Monthly
cashback"},"1":{"cms_field_1":"Exclusive
Discount code every month"}} [image_5] => stdClass Object ( [_] =>
stdClass Object ( [cdn] => 1 [w] => 190 [h] => 190 [t] => png [ts] =>
1593759926 ) [cms] => stdClass Object ( [cdn] => 1 [w] => 130 [h] => 130
[t] => jpg [ts] => 1593759926 [tr] => ) [t] => stdClass Object ( [cdn]
=> 1 [w] => 100 [h] => 100 [t] => png [ts] => 1593759926 [tr] => 1 ) [s]
=> stdClass Object ( [cdn] => 1 [w] => 190 [h] => 190 [t] => png [ts] =>
1593759926 [tr] => 1 ) ) [monthly_cashback_percentage] => 2
[cms_created] => 2020-04-01 08:36:11 [parent_mid] => 0
[do_not_serialise] => Array ( [0] => cms_table [1] => select_fields [2]
=> multi_select_fields [3] => image_fields ) ) [label_title] => Title
[show_label] => 1 [show_required_asterix] => [error_label] =>
[validation_error_prefix] => [source_data] => table_field Object ( [mid]
=> 208 [fid] => 1 [ftid] => str [ulid] => 3 [linkmid] => 0 [linkfid] =>
0 [fieldset] => [name] => title [title] => Title [required] => 1
[editable] => 1 [searchable] => 1 [tablename] => membership [default] =>
[hint] => [source_table] => [shadow_data] => 0 [options] => ) )
Expected result:
----------------
The object serializes to a string and unserializes again to return it
back to its original state.
Actual result:
--------------
We get a malformed string that can't be unserializsed.
--
Edit bug report at https://bugs.php.net/bug.php?id=79978&edit=1
--
Fix committed: https://bugs.php.net/fix.php?id=79978&r=fixed
Fixed in release: https://bugs.php.net/fix.php?id=79978&r=alreadyfixed
Need backtrace: https://bugs.php.net/fix.php?id=79978&r=needtrace
Need Reproduce Script: https://bugs.php.net/fix.php?id=79978&r=needscript
Try newer version: https://bugs.php.net/fix.php?id=79978&r=oldversion
Not developer issue: https://bugs.php.net/fix.php?id=79978&r=support
Expected behavior: https://bugs.php.net/fix.php?id=79978&r=notwrong
Not enough info: https://bugs.php.net/fix.php?id=79978&r=notenoughinfo
Submitted twice: https://bugs.php.net/fix.php?id=79978&r=submittedtwice
register_globals: https://bugs.php.net/fix.php?id=79978&r=globals
PHP version support discontinued: https://bugs.php.net/fix.php?id=79978&r=phptooold
Daylight Savings: https://bugs.php.net/fix.php?id=79978&r=dst
IIS Stability: https://bugs.php.net/fix.php?id=79978&r=isapi
Install GNU Sed: https://bugs.php.net/fix.php?id=79978&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=79978&r=float
No Zend Extensions: https://bugs.php.net/fix.php?id=79978&r=nozend
MySQL Configuration Error: https://bugs.php.net/fix.php?id=79978&r=mysqlcfg
Thread (2 messages)
- cdtreeks at gmail dot com