复制代码 代码如下:
/*********************************************************************
* 公用函数列表
* ubb,getip,GoIn,goback,IsInt,InString
* OurHome:http://iwind.org
* http://10.13.31.90/~coldwind
*
* */
/////////////////ubb支持代码函数////////////////////////////
function ubb($Text) {
$Text=trim($Text);
$Text=htmlspecialchars($Text);
$Text=ereg_replace("\n","
",$Text);
$Text=preg_replace("/\\t/is"," ",$Text);
$Text=preg_replace("/\[h1\](.+?)\[\/h1\]/is","
\\1
",$Text);$Text=preg_replace("/\[h2\](.+?)\[\/h2\]/is","
\\1
",$Text);$Text=preg_replace("/\[h3\](.+?)\[\/h3\]/is","
\\1
",$Text);$Text=preg_replace("/\[h4\](.+?)\[\/h4\]/is","
\\1
",$Text);$Text=preg_replace("/\[h5\](.+?)\[\/h5\]/is","
\\1
",$Text);$Text=preg_replace("/\[h6\](.+?)\[\/h6\]/is","
\\1
",$Text);$Text=preg_replace("/\[center\](.+?)\[\/center\]/is","
$Text=preg_replace("/\[url\](http:\/\/.+?)\[\/url\]/is","\\1",$Text);
$Text=preg_replace("/\[url\](.+?)\[\/url\]/is","http://\\1",$Text);
$Text=preg_replace("/\[url=(http:\/\/.+?)\](.*)\[\/url\]/is","\\2",$Text);
$Text=preg_replace("/\[url=(.+?)\](.*)\[\/url\]/is","\\2",$Text);
$Text=preg_replace("/\[img\](.+?)\[\/img\]/is","
$Text=preg_replace("/\[color=(.+?)\](.+?)\[\/color\]/is","\\2",$Text);
$Text=preg_replace("/\[size=(.+?)\](.+?)\[\/size\]/is","\\2",$Text);
$Text=preg_replace("/\[sup\](.+?)\[\/sup\]/is","\\1",$Text);
$Text=preg_replace("/\[sub\](.+?)\[\/sub\]/is","\\1",$Text);
$Text=preg_replace("/\[pre\](.+?)\[\/pre\]/is","
\\1",$Text);
$Text=preg_replace("/\[email\](.+?)\[\/email\]/is","\\1",$Text);
$Text=preg_replace("/\[i\](.+?)\[\/i\]/is","\\1",$Text);
$Text=preg_replace("/\[b\](.+?)\[\/b\]/is","\\1",$Text);
$Text=preg_replace("/\[quote\](.+?)\[\/quote\]/is","
quote:", $Text);
\\1
$Text=preg_replace("/\[code\](.+?)\[\/code\]/is","
code:", $Text);
\\1
$Text=preg_replace("/\[sig\](.+?)\[\/sig\]/is","
--------------------------
\\1
--------------------------
return $Text;
}
/////////////////Get the visitor’s ip address////////////// ////////////////
function getip() {
$IP=getenv('REMOTE_ADDR');
$IP_ = getenv('HTTP_X_FORWARDED_FOR');
if (($IP_ != "") && ($IP_ != "unknown")) $IP=$IP_;
return $IP;
}
function goback($num,$saying){
echo"
$saying"; } /////////// /////////Determine whether the string contains a certain value in array////////////////// function InString($array,$string){ while(list(,$value)=each($array)){ if(eregi($value,$string)){ return true; exit; } } } /////// /////////////Link to a page/////////////////////////////////// /////// function GoIn($addr,$saying){ echo"
} /////////////////////JS return// ////////////////////////////////////////////// function IsInt($string ){ if(ereg("^[0-9]{0,}$",$string)){ return true; } else { return false; } } ?> The above introduces the pretty rhythm dear my future PHP public function list [regular], including the content of pretty rhythm dear my future. I hope it will be helpful to friends who are interested in PHP tutorials.
|

TomakePHPapplicationsfaster,followthesesteps:1)UseOpcodeCachinglikeOPcachetostoreprecompiledscriptbytecode.2)MinimizeDatabaseQueriesbyusingquerycachingandefficientindexing.3)LeveragePHP7 Featuresforbettercodeefficiency.4)ImplementCachingStrategiessuc

ToimprovePHPapplicationspeed,followthesesteps:1)EnableopcodecachingwithAPCutoreducescriptexecutiontime.2)ImplementdatabasequerycachingusingPDOtominimizedatabasehits.3)UseHTTP/2tomultiplexrequestsandreduceconnectionoverhead.4)Limitsessionusagebyclosin

Dependency injection (DI) significantly improves the testability of PHP code by explicitly transitive dependencies. 1) DI decoupling classes and specific implementations make testing and maintenance more flexible. 2) Among the three types, the constructor injects explicit expression dependencies to keep the state consistent. 3) Use DI containers to manage complex dependencies to improve code quality and development efficiency.

DatabasequeryoptimizationinPHPinvolvesseveralstrategiestoenhanceperformance.1)Selectonlynecessarycolumnstoreducedatatransfer.2)Useindexingtospeedupdataretrieval.3)Implementquerycachingtostoreresultsoffrequentqueries.4)Utilizepreparedstatementsforeffi

PHPisusedforsendingemailsduetoitsbuilt-inmail()functionandsupportivelibrarieslikePHPMailerandSwiftMailer.1)Usethemail()functionforbasicemails,butithaslimitations.2)EmployPHPMailerforadvancedfeatureslikeHTMLemailsandattachments.3)Improvedeliverability

PHP performance bottlenecks can be solved through the following steps: 1) Use Xdebug or Blackfire for performance analysis to find out the problem; 2) Optimize database queries and use caches, such as APCu; 3) Use efficient functions such as array_filter to optimize array operations; 4) Configure OPcache for bytecode cache; 5) Optimize the front-end, such as reducing HTTP requests and optimizing pictures; 6) Continuously monitor and optimize performance. Through these methods, the performance of PHP applications can be significantly improved.

DependencyInjection(DI)inPHPisadesignpatternthatmanagesandreducesclassdependencies,enhancingcodemodularity,testability,andmaintainability.Itallowspassingdependencieslikedatabaseconnectionstoclassesasparameters,facilitatingeasiertestingandscalability.

CachingimprovesPHPperformancebystoringresultsofcomputationsorqueriesforquickretrieval,reducingserverloadandenhancingresponsetimes.Effectivestrategiesinclude:1)Opcodecaching,whichstorescompiledPHPscriptsinmemorytoskipcompilation;2)DatacachingusingMemc


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