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1 .NEW FEATURES AND PERFORMANCE
A BRIEF TO PHP 7.3
Laruence
PHP DEVELOPER
2 .SELF INTRODUCTION
A PROGRAMER
· Author Of Yaf, Yar, Yac, Yaconf, Taint Projects
· Maintainer Of Opcache, Msgpack Projects
· PHP Core Developer Since 2011
· Zend Consultant Since 2013
· PHP7 Core Developer
· Chief Software Architect At Lianjia Since 2015
3 .PHP HISTORY
BORN FOR WEB
· Created In 1994 By Rasmus Lerdorf 83.5%
PHP
· 20+ Years Programming Language 13.4%
ASP.NET
· Most Popular Web Service Program Language 2.3%
Java
· Php7 Is Released At 3 Dec 2015 1.9%
Static files
· Latest Version Is PHP7.2.5 0.6%
ColdFusion
Ruby 0.6%
Perl 0.4%
JavaScript 0.4%
Python 0.2%
Erlang 0.1%
W3Techs.com，1 April 2018
4 .HEREDOC AND NEWDOC
· The Ending Token No Loner Needs To Be The First Strings Of Line
· The Ending Token Can Be Indented
· The Exact Number Of Spaces/Tabs Used In The Ending Token Will Be Striped
function example($arr) { function example($arr) {
$out = ""; $out = "";
foreach($arr as $str) { foreach($arr as $str) {
$out .= <<<DOC $out .= <<<DOC
repeat {$str} repeat {$str}
DOC; DOC;
} }
return $arr; return $arr;
} }
5 .TRAILING COMMA IN FUNC CALLS
· Allow Trailing Comma In Function And Method Calls
· Only One Extra Comma Are Allowed
· You Can Not Use This In Function/Method Declarations
function func_call($num1, $num2, $num3, $num4) { func_call(
return $num1 + $num2 + $num3 + $mum4; $argument1,
} $argument2,
$argument3,
$argument4,
);
6 .REFERENCE IN LIST
· Items In List Can Be Assigned By Reference
$animal = ['dog', 'cat']; $animal = ['dog', 'cat'];
list($a, &$b) = $animal; [$a, &$b] = $animal;
$b = "monkey"; $b = "monkey";
var_dump($animal); var_dump($animal);
//output: //output:
//array(2) { //array(2) {
// [0]=> // [0]=>
// string(3) "dog" // string(3) "dog"
// [1]=> // [1]=>
// &string(5) "monkey" // &string(5) "monkey"
//} //}
7 .HRTIME
· Hrtime Is A High-Resolution Monotonic Timer
· It Doesn’t Depends On The System Clock
$start = hrtime(true);
//...........
$end = hrtime(true);
$elapsed = $end - $start;
8 .HRTIME
· Hrtime Is A High-Resolution Monotonic Timer
· It Doesn’t Depends On The System Clock
$start = hrtime(true);
//...........
$end = hrtime(true);
$elapsed = $end - $start;
9 .MULTIPLY NEW FEATURES & BUGFIX
· Add Net_Get_Interfaces()
· Instanceof Now Allows Literals As The First Operand
· New Flag Json_Throw_On_Error, Json_Encode/Decode Could Throw Exception Instead Warning Now
· Added Is_Countable() Function, To Check Whether A Value May Be Passed Tocount()
· Multiply New Methods Added In Gmp
· Https://Github.Com/Php/Php-Src/Blob/Master/Upgrading
10 .FASTER NEW GC
· Composer Gc Performance Problem Resolved
· Multiple Bugs Fixed In The Mean Time
11 .FASTER NEW GC
· Removed Double Link List, Plain Array Instead
· Dynamically Resize-Able Root Buffers
· Dynamically Gc Threshold Adjustment
· Reduced Gc_Buffer_Root Size From 32 To 8 (X86_64)
· 5X Boost Performance In Tests
typedef struct _gc_root_buffer { typedef struct _gc_root_buffer {
zend_refcounted *ref; zend_refcounted *ref;
struct _gc_root_buffer *next; } gc_root_buffer;
struct _gc_root_buffer *prev;
uint32_t refcount;
} gc_root_buffer;
12 .SIMD OPTIMIZATION FRAMEWORK
· Runtime Cpu Feature Detection(Sse, Avx)
· Zend_Cpu_Support_Sse42
· Cpu Specific Version Runtime Selection (Ifunc/Function Pointer)
· Addslashes
· 2X+ Performance Improved In Test
13 .BASE64 SIMD OPTIMIZATION
· Base64_Encode/Decode Optimized
· 3X Performance Improved In Test (Sse42)
· Http://Www.Alfredklomp.Com/Programming/Sse-Base64/
$retry = 100;
$start = microtime(true);
while (--$retry) {
$length = (int)(1000/$retry);
$str = file_get_contents("/dev/urandom", false, NULL, 0, $length);
//echo "String lenght: ", $length, "\n";
$time = microtime(true);
for ($i = 0; $i < 1000000; $i++) {
base64_encode($str);
}
$time = microtime(true) - $time;
//echo "Used time: ", $time , "s", "\n";
}
echo "Total used time: ", microtime(true) - $start, "s\n";
14 .PERFORMANCE EVOLUTION
14 13.424
10.5
7 6.527
5.318
3.762
3.5 3.102 3.045 2.991
1.022 0.921 0.813 0.803
0
PHP-5.0 PHP-5.1 PHP-5.2 PHP-5.3 PHP-5.4 PHP-5.5 PHP-5.6 PHP-7.0 PHP-7.1 PHP-7.2 PHP-7.3
BENCH.PHP
15 .PERFORMANCE EVOLUTION
400
338
330
317 321
300
200
107 110 112
100 82
75
0 0
0
PHP-5.0 PHP-5.1 PHP-5.2 PHP-5.3 PHP-5.4 PHP-5.5 PHP-5.6 PHP-7.0 PHP-7.1 PHP-7.2 PHP-7.3
WORDPRESS HOMEPAGE QPS
16 .PHP 7.3 ROADMAP
· Jun 2018, Alpha1
· Jul 2018, Beta
· Aug 2018, Rc
· Nov 2018, Ga
17 . THANKS
PHP: KEEP GETTING FASTER
18 .PHPCON www.phpconchina.com
PPT https://github.com/ThinkDevelopers/PHPConChina
QQ 34449228 135615537
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