Changed Functions
New Classes and Interfaces
Migrating from PHP 5.3.x to PHP 5.4.x
PHP Manual
New Functions
PHP 5.4 introduced some new functions:
PHP Core:
hex2bin()
http_response_code()
get_declared_traits()
getimagesizefromstring()
stream_set_chunk_size()
socket_import_stream()
trait_exists()
header_register_callback()
SPL:
class_uses()
Session:
session_status()
session_register_shutdown()
Mysqli:
mysqli_error_list()
mysqli_stmt_error_list()
Libxml:
libxml_set_external_entity_loader()
LDAP:
ldap_control_paged_result()
ldap_control_paged_result_response()
Intl:
transliterator_create()
transliterator_create_from_rules()
transliterator_create_inverse()
transliterator_get_error_code()
transliterator_get_error_message()
transliterator_list_ids()
transliterator_transliterate()
Zlib:
zlib_decode()
zlib_encode()
Changed Functions
New Classes and Interfaces
Migrating from PHP 5.3.x to PHP 5.4.x
PHP Manual