After much anticipation, PHP 8.4 has finally released its first official version. PHP 8.4 maintains a high degree of backward compatibility from PHP 8.0 to 8.4 and introduces several new features.
New/Changed Features in PHP 8.4
-
curl_getinfo
now supportsCURLINFO_POSTTRANSFER_TIME_T
-
curl_version()
supportsfeature_list
- New functions:
http_(get|clear)_last_response_headers
- New option:
CURLOPT_PREREQFUNCTION
- New option:
CURLOPT_DEBUGFUNCTION
- New option:
CURLOPT_SERVER_RESPONSE_TIMEOUT
, replacingCURLOPT_FTP_RESPONSE_TIMEOUT
- New option:
CURLOPT_TCP_KEEPCNT
- New
round()
function - New functions:
mb_trim
,mb_ltrim
, andmb_rtrim
-
DateTime(Immutable)
class now hascreateFromTimestamp
method -
phpinfo
now displays PHP integer size information -
DateTime(Immutable)
class addsget/setMicrosecond
methods - New function:
request_parse_body
- Upgraded PCRE2 with related regex changes
Syntax/Function Changes in PHP 8.4
- OpenSSL: Minimum required OpenSSL version increased to 1.1.1
- MBString: Unicode character database updated to version 16
-
exit
/die
changed from language constructs to functions -
CURLOPT_DNS_USE_GLOBAL_CACHE
is now deprecated - Password Hashing: Default Bcrypt cost increased from 10 to 12
-
PHP_ZTS
andPHP_DEBUG
constant value types changed fromint
tobool
- Opcache: INI changes for enabling JIT
-
round()
function: Invalid rounding modes will throw a\ValueError
exception - Curl: Minimum required libcurl version increased to 7.61.0
Deprecated Features in PHP 8.4
- Implicit nullable parameter declarations are deprecated
-
E_STRICT
constant is deprecated - Using more than 2 parameters with
session_set_save_handler()
is deprecated - CSV: The
$escape
parameter must be provided -
CURLOPT_BINARYTRANSFER
is deprecated
Removed Features in PHP 8.4
- Pspell extension moved from PHP core to PECL
- IMAP extension moved from PHP core to PECL
- OCI8 and PDO-OCI extensions moved from PHP core to PECL
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