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Download azerion/iab-tcf-v2
More information about azerion/iab-tcf-v2
Files in azerion/iab-tcf-v2
Vendor azerion
Package iab-tcf-v2
Short Description IAB TCF v2.x consent string decoder and encoder for PHP.
License Apache-2.0
Homepage https://github.com/azerion/php-iab-tcf-v2
Package iab-tcf-v2
Short Description IAB TCF v2.x consent string decoder and encoder for PHP.
License Apache-2.0
Homepage https://github.com/azerion/php-iab-tcf-v2
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Informations about the package iab-tcf-v2
azerion/iab-tcf-v2
A clean, dependency-free PHP library for decoding and encoding IAB TCF v2.x consent strings (v2.0, v2.1, v2.2, v2.3).
- PHP 8.3+, immutable value objects, fully typed, PHPStan level max.
- All TCF v2.x policy versions accepted.
versionmust be2;tcfPolicyVersionis read as-is. - No GVL support — this library is purely a string encoder/decoder. Bring your own Global Vendor List if you need it.
- Public API is just three types:
TCString,TCModel, and thePublisherTC/PublisherRestrictionvalue objects.
Installation
Decode
Encode
Field validation runs in the TCModel constructor — IDs out of range, invalid language codes, or version !== 2 will throw TcfException immediately.
Field reference
The library's property names match the spec field names converted to camelCase.
| Spec field | TCModel property |
Type |
|---|---|---|
| Version | version |
int (always 2) |
| Created | created |
DateTimeImmutable |
| LastUpdated | lastUpdated |
DateTimeImmutable |
| CmpId | cmpId |
int (0..4095) |
| CmpVersion | cmpVersion |
int (0..4095) |
| ConsentScreen | consentScreen |
int (0..63) |
| ConsentLanguage | consentLanguage |
string (ISO 639-1, e.g. EN) |
| VendorListVersion | vendorListVersion |
int (0..4095) |
| TcfPolicyVersion | tcfPolicyVersion |
int (2 = v2.0, 3 = v2.1, 4 = v2.2, 5 = v2.3) |
| IsServiceSpecific | isServiceSpecific |
bool |
| UseNonStandardStacks | useNonStandardStacks |
bool (a.k.a. UseNonStandardTexts in v2.3 docs) |
| SpecialFeatureOptIns | specialFeatureOptIns |
list<int> (1..12) |
| PurposesConsent | purposesConsent |
list<int> (1..24) |
| PurposesLITransparency | purposesLITransparency |
list<int> (1..24) |
| PurposeOneTreatment | purposeOneTreatment |
bool |
| PublisherCC | publisherCC |
string (ISO 3166-1 alpha-2) |
| VendorsConsent | vendorsConsent |
list<int> |
| VendorsLegitimateInterest | vendorsLegitimateInterest |
list<int> |
| PublisherRestrictions | publisherRestrictions |
list<PublisherRestriction> |
| DisclosedVendors (segment) | disclosedVendors |
list<int> (mandatory in v2.3, optional in v2.0-2.2) |
| AllowedVendors (segment) | allowedVendors |
?list<int> (null = absent) |
| PublisherTC (segment) | publisherTC |
?PublisherTC |
PublisherRestriction
PublisherTC
Design notes
- Re-encoding is not guaranteed to be bit-identical to the input string. The encoder always picks the smallest representation (bitfield vs. range) per vendor segment, which may differ from the choice the original CMP made. Decoding then re-encoding will produce an equivalent model, not necessarily an equivalent string.
maxVendorIdandisRangeEncodingare never on the model. They are computed at encode time from the data.- Lenient decode, strict encode. The decoder accepts whatever well-formed bits it sees; the encoder validates aggressively via the
TCModelconstructor. - No GVL. Decoding does not require a Global Vendor List. If you need to look up vendor names or display purposes, fetch the GVL yourself from
https://vendor-list.consensu.org/v3/vendor-list.jsonand join on the IDs. - Spec scope. All TCF v2.x policy versions are supported (v2.0 through v2.3). TCF v1.x is not supported —
version !== 2will throw on decode. - The
useNonStandardStacksfield is the original IAB spec name. The v2.3 documentation renamed it toUseNonStandardTexts, but the bit position and semantics are identical.
Versioning
Semantic versioning. Until 1.0.0, expect minor versions to contain breaking changes.
License
Apache-2.0 © Azerion.
Spec references
- IAB Tech Lab — Consent string and vendor list formats v2
- IAB Europe — TCF v2.3 announcement
- iabtcf-es — the reference TypeScript implementation this library is structurally modelled after.
All versions of iab-tcf-v2 with dependencies
PHP Build Version
Package Version
Requires
php Version
^8.3
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