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Some ways to optimize PHP efficiency and improve PHP performance

of single quotes instead of double quotes quoted strings; 10, "Replace i=i+1 with I+=1." In line with C + + habits, efficiency is also high "; 11, to global variables, should be used up on the unset () off; 12. In the for or foreach, replace $tempArray [count ($tempArray)] with $tempArray [] = $field $field 13, static call members must be defined as static (PHP5 only) Tip: PHP 5 introduces the concept of static members, the role of PHP 4 and the function of the internal static variables, but th

Environment configuration for CUDA5.0 + Visual Studio 2010

. 3.2 Installation Cuda5.0 The default installation directory for the CUDA Toolkit is: C:\Program files\nvidia GPU Computing toolkit\cuda\v5.0 CUDA The default installation directory for the SDK is: C:\ProgramData\NVIDIA Co Rporation\cuda samples\v5.03.3 Configuring environment variables The system environment variables are configured automatically after the Toolkit and SDK have been installed. For insurance purposes, configure the environment variables manually. Create the following item in the

Develop custom menu functions on the PHP WeChat public platform

= ACCESS_TOKEN The curl code is as follows: $MENU_URL="https://api.weixin.qq.com/cgi-bin/menu/get?access_token=".$ACC_TOKEN;$cu = curl_init();curl_setopt($cu, CURLOPT_URL, $MENU_URL);curl_setopt($cu, CURLOPT_RETURNTRANSFER, 1);$menu_json = curl_exec($cu);$menu = json_decode($menu_json);curl_close($

Custom menu function development for WeChat public platform development

generate the code. therefore, open the browser and enter the complete menu code URL in the address bar, the running result is as follows: $MENU_URL="https://api.weixin.qq.com/cgi-bin/menu/get?access_token=".$ACC_TOKEN;$cu = curl_init();curl_setopt($cu, CURLOPT_URL, $MENU_URL);curl_setopt($cu, CURLOPT_RETURNTRANSFER, 1);$menu_json = curl_exec($

PHP WeChat public platform development custom menu function _ PHP Tutorial

)) { echo 'Errno'.curl_error($ch);}curl_close($ch);var_dump($info); Running result: Test results: Menu created successfully.5. query menu Query the currently used custom menu structure. Request address: https://api.weixin.qq.com/cgi-bin/menu/get? Access_token = ACCESS_TOKEN The curl code is as follows: $MENU_URL="https://api.weixin.qq.com/cgi-bin/menu/get?access_token=".$ACC_TOKEN;$cu = curl_init();curl_setopt($

PHP WeChat Public Platform Development custom menu Function _php Tutorial

); curl_setopt ($ch, Curlopt_useragent, ' mozilla/5.0 (compatible; MSIE 5.01; Windows NT 5.0) curl_setopt ($ch, curlopt_followlocation, 1); curl_setopt ($ch, Curlopt_autoreferer, 1); curl_setopt ($ch, Curlopt_postfields, $data); curl_setopt ($ch, Curlopt_returntransfer, true); $info = curl_exec ($ch), if (Curl_errno ($ch)) { echo ' errno '. Curl_error ($ch);} Curl_close ($ch); Var_dump ($info); Operation Result: Test results: The menu was created successfully. Five, Query menu Queries the c

AMD opencl university course (6)

(cypress ). 20 SIMD engines, each of which contains 16 SIMD engines. Each SIMD contains 16 stream cores Each stream core is a 5-way multiplication-addition unit (VLIW processing ). The single precision operation can reach teraflops. Double precision calculation can reach 544 Gb/s A simd engine. Each SIMD engine consists of a series of stream cores. Each stream core is a five-way VLIW processor. In a VLIW command, up to five scalar operations can be initiated. The scalar operation is

Questions about SQL Stitching?

Ask for a SQL stitching problem?? Requirements: According to the province, customer name, ventilation time 3 conditions to sort, you can select only one or more, these 3 sorting criteria are check boxes, SQL is as follows: $MYSQL->query ("select * from Customer cu". $where); Sorting criteria: Provinces Customer Name Ventilation time Sort criteria for stitching behind SQL if ($sel _key10) { $where = $where. "ORDER by Cu.province"; Province } if

AVS2 Technology Overview

original link: http://media.pkusz.edu.cn/achievements/?p=40 AVS2 adopts the traditional hybrid coding framework, the whole coding process includes intra prediction, frame prediction, transform quantization, loop Filter and Entropy coding module. Has the following technical characteristics: Figure 1 AVS2 Coding Framework 1. Coding Structure Division In order to meet the compression efficiency requirements of HD and Ultra HD resolution video, the AVS2 adopts a more flexible block partitioning st

Linux Platform cuda+opencv3.4 Configuration

compiled, not linked, and the. cu file is compiled to generate a. cu file-o Specifies the filename of the. o file to be generatedThere are other compilation options that can be consulted in the Nvidia NVCC compilation manual, which can be found in the Cuda installation directory3 Cuda mixed with OPENCV compilationCuda and OpenCV mixed compilation is actually talking about.

Linux Platform x86 compilation (i): modern computer structure composition and working process

main memory, two registers Mar and Mdr,mar are used to store the address of the storage unit to be accessed, and the MDR is a memory data register, which is used to store the data taken from a memory unit and the data to be written to a memory unit, and the CPU is added to the control signal for the specific fetch and write action. The operator consists of at least 3 registers and an arithmetic logic unit (ALU). ACC is an accumulator register, MQ is the carrier register, and x is the operand re

CUDA Highlighting settings

1, will c:/documents and Settings/all users/application data/nvidia corporation/nvidia CUDA sdk/doc/syntax_highlighting/ Copy the Usertype.dat file from the visual_studio_8 to the C:/Program files/microsoft Visual Studio 8/common7/ide directory (appended to the original if it already exists). 2. Open the Vs2005-> tools (T), Options (O), Projects and Solutions->vc++ Project Settings->c/c++ file extension (add *.cu later), include the extension (after w

10046 Event Trace Session SQL

.x86_64Version: #1 SMP Thu Jul 15:44:03 UTC 2015Machine:x86_64Instance NAME:ORCLRedo thread mounted by this instance:1Oracle Process number:32Unix process pid:2823, Image: [email protected] (TNS v1-v3) 2014-11-19 04:42:30.941SESSION ID: (45.14) 2014-11-19 04:42:30.941CLIENT ID: () 2014-11-19 04:42:30.941SERVICE NAME: (sys$users) 2014-11-19 04:42:30.941MODULE NAME: (sql*plus) 2014-11-19 04:42:30.941ACTION NAME: () 2014-11-19 04:42:30.941 WAIT #2: nam= ' sql*net message to client ' Ela= 2 driver i

Problems with PL/SQL functions in SQL

(memory)0 sorts (disk)1000000 rows processed In this case, not only the network I/O, but also the cache I/O takes 13.50 seconds. With autotrace, we feel that using PL/SQL functions in SQL is slower than using SQL statements directly. Note: The AUTOTRACE information is not obvious here. You can use the DBMS_HPROF package introduced earlier to view detailed performance information. Here we will analyze the SQL _TRACE of the above two statements. The SQL _TRACE directly queried using SQL statement

PHP after the page, the serial number again to start the question + urgent

PHP after the page, serial number again start the problem + urgent urgent? $MYSQL->query ("Select Cu.*,cy.name from Customer cu,custtype cy where 1=1 and Cu.code=cy.code limit 0,18"); for ($i =1; $i $MYSQL->fetch ($i); $customerid = $MYSQL->data[customerid]; Customer number $KSName = $MYSQL->data[ksname]; User name-abbreviation echo "$i"; Serial number echo "$customerid"; Customer number echo "$KSName"; Us

[20170916]sqlplus Set array min 2 supplemental. txt

. Tracking:Set ArraySize 1@10046on 12Select Empno, ename, Deptno, Sleep (1) N1 from EMP;@ 10046offD:\tools\rlwrap>grep FETCH D:\APP\ORACLE\DIAG\RDBMS\TEST\TEST\TRACE\TEST_ORA_5436.TRCgrep FETCH D:\APP\ORACLE\DIAG\RDBMS\TEST\TEST\TRACE\TEST_ORA_5436.TRCFETCH #821664400: c=0,e=1002980,p=0,cr=5,cu=0,mis=0,r=1,dep=0,og=1,plh=3956160932,tim=10059543349FETCH #821664400: c=0,e=2000348,p=0,cr=1,cu=0,mis=0,r=2,dep=0

Oracle Performance Analysis: Enabling SQL tracking and obtaining trace files

= 1115215392 ad = '33e7e384'Select/* + index (idl_char $ I _idl_char1) + */piece #, length, piece from idl_char $ where obj # =: 1 and part =: 2 and version =: 3 order by piece #END OF STMTPARSE #4: c = 0, e = 12, p = 0, cr = 0, cu = 0, mis = 0, r = 0, dep = 1, og = 4, tim = 777069789357-- BINDS #2:EXEC #4: c = 0, e = 14, p = 0, cr = 0, cu = 0, mis = 0, r = 0, dep = 1, og = 4, tim = 777069789415-- WAIT #2:

[Oracle]-[impact of COMMIT on indexes]-view the impact of COMMIT on indexes from the trace

cursors so that the results are clearer. Trace file of Case 1: * ** 08:56:57. 328 *** action name :() 08:56:57. 328 *** module name :( sqlplus @ vm-vmw4131-t (TNS V1-V3) 08:56:57. 328 *** service name :( SYS $ USERS) 08:56:57. 328 *** session id: (508.20733) 08:56:57. 327 ================================ parsing in cursor #1 len = 6 dep = 0 uid = 0 oct = 44 lid = 0 tim = 1343000212234337 hv = 3480936638 ad = '0' commitEND of stmtparse #1: c = 0, e = 54, p = 0, cr = 0,

Use 10046 to view the execution plan and read the trace file

the information collected is classified into the following levels: Level 0 Disables SQL tracing, which is equivalent to SQL _TRACE = FALSE. Level 1 Standard SQL trace, equivalent to SQL _TRACE = TRUE Level 4 Add variable binding information based on level 1. Level 8 Add wait event information based on level 1 Level 12 Add variable binding and wait event information based on level 1. Analyze and read trace files Now let's ope

OSPF NBMA Experiment (unicast, broadcast)

1Peer 10.1.123.2Peer 10.1.123.3Area 0.0.0.0Network 10.1.123.0 0.0.0.255Network 11.1.1.1 0.0.0.0#Return[Huawei]dis cur Inter[Huawei]dis cur interface S 1/0/0[V200R003C00]#Interface serial1/0/0Link-protocol FR (S port defaults to PPP, that is, the peer network type. therefore need to be modified into FR)FR Map IP 10.1.123.2 102FR Map IP 10.1.123.3 103IP address 10.1.123.1 255.255.255.0[Huawei]dis OSPF Inter s 1/0/0OSPF Process 1 with Router ID 11.1.1.1Interfacesinterface:10.1.123.1 (serial1/0/0)

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