一、背景这两天一直在努力背单词。我想我应该先写下最常用的单词。在网上找了几篇文章，分析了一批词。效果还不错；然后我想到了代码，也很好奇开发者最常用的词或函数有哪些，我统计了三种：系统函数，变量名，自定义函数名，其他统计。有兴趣的朋友可以将正则设置为自己需要统计的规则。2.参考代码1){//为了能够显示中文目录/文件，需要转码$_SERVER['fileList'][]=$path.'/'。iconv('gbk','utf-8',$文件);}//如果文件仍然是目录，则递归if(is_dir($path.'/'.$file)){scanMyDir($path.'/'.$file);}}}functionexplodeCount($fileName,$pregRule){$text=file_get_contents($fileName);preg_match_all($pregRule,$text,$keywordArr);foreach($keywordArr[1]as$keyword){$_SERVER['count'][$keyword]=$_SERVER['count'][$keyword]??0;$_服务器['计数'][$关键字]+=1;}}functionstart($path,$pregRule){scanMyDir($path);//将要统计的文件写入当前文件夹，方便查看统计File_put_contents("fileList.txt",implode("\n",$_SERVER['fileList']));//从上一个文件中读取要统计的文件列表$fileList=file_get_contents("fileList.txt");$fileList=explode("\n",$fileList);//遍历并统计每个文件中的单词foreach($fileListas$fileName){explodeCount($fileName,$pregRule);}//在将结果写入文件之前，先排序arsort($_SERVER['count']);//只需要前100个$_SERVER['count']=array_slice($_SERVER['count'],0,100);//将结果写入文件$sumResult=var_export($_SERVER['count'],true);file_put_contents("countResult.txt",$sumResult);}//要统计的代码目录$path='/root/mycode/work/offcn-live/vendor';//$pregRule='/([a-z]+_?[a-z]+)\(/';//系统函数规则//$pregRule='/(\$[a-zA-Z]+_?[a-zA-Z]+)/';//变量名规则$pregRule='/[->:]+([a-z]+_?[a-z]+)\(/';//自定义函数名规则start($path,$pregRule);3.常用函数数组('array'=>6126,'isset'=>1345,'substr'=>845,'sprintf'=>737,'strlen'=>650,'count'=>598,'unset'=>556,'array_merge'=>449,'list'=>413,'strpos'=>408,'str_replace'=>393,'implode'=>348,'explode'=>333,'is_array'=>332,'static'=>297,'trim'=>263,'declare'=>238,'mock'=>237,'pack'=>232,'preg_match'=>222,'is_null'=>210,'get_class'=>203,'array_map'=>195,'self'=>191,'strtolower'=>190,'empty'=>183,'preg_replace'=>180,'chr'=>169,'function_exists'=>163,'user_error'=>161,'handle'=>158,'is_string'=>155,'is_object'=>140,'str_repeat'=>139,'array_keys'=>138,'rewind'=>137,'in_array'=>133,'write'=>132,'mt_rand'=>132,'array_values'=>129,'time'=>125,'not'=>124,'array_shift'=>124,'extract'=>120,'getenv'=>115,'reset'=>113,'execute'=>112,'printf'=>110,'fopen'=>108,'get'=>105,'collect'=>100,'current'=>100,'fclose'=>99,'unpack'=>96,'strval'=>96,'matches'=>92,'rtrim'=>90,'str_pad'=>88,'json_encode'=>88,'array_filter'=>88,'array_pop'=>85,'app'=>84,'range'=>84,'dirname'=>83,'define'=>81,'microtime'=>80,'foo'=>80,'create'=>80,'ord'=>80,'compact'=>79,'read'=>77,'method_exists'=>76,'register'=>75,'realpath'=>74,'intval'=>73,'bar'=>73,'strtotime'=>73,'fread'=>72,'class_exists'=>72,'print'=>72,'max'=>72,'curl_setopt'=>70,'fwrite'=>69,'tap'=>66,'strtoupper'=>65,'array_unshift'=>65,'serialize'=>64,'ob_start'=>64，“反序列化”=>63，“strrpos”=>61，“密钥”=>61,'preg_split'=>61,'ini_get'=>61,'add'=>59,'close'=>59,'array_slice'=>58,'putenv'=>57,'eval'=>57,'gettype'=>56,'var_export'=>56,)四、常用变量名array('$this'=>75572,'$value'=>6303,'$options'=>4731,'$key'=>4597,'$name'=>4367,'$vendorDir'=>4310,'$message'=>4115,'$request'=>3453,'$stackPos'=>3237,'$response'=>2796,'$result'=>2577,'$data'=>2308,'$path'=>2117,'$node'=>1733,'$type'=>1650,'$method'=>1620,'$file'=>1449,'$arguments'=>1415,'$class'=>1408,'$callback'=>1378,'$output'=>1364,'$command'=>1314,'$parameters'=>1273,'$config'=>1252,'$expected'=>1197,'$column'=>1153,'$input'=>1140,'$id'=>1119,'$headers'=>1083,'$event'=>1083,'$args'=>986,'$attributes'=>979,'$length'=>961,'$code'=>950,'$query'=>947,'$prefix'=>947,'$mock'=>930,'$token'=>925,'$context'=>909,'$test'=>892,'$temp'=>884,'$header'=>871,'$matches'=>847,'$object'=>825,'$string'=>813,'$container'=>810,'$server'=>810,'$stream'=>768,'$collection'=>768,'$route'=>761,'$values'=>761,'$记录'=>748，'$exception'=>748，'$actual'=>719，'$connection'=>712，'$item'=>697，'$constraint'=>670，'$operation'=>666,'$date'=>655,'$bucket'=>648,'$array'=>644,'$line'=>643,'$count'=>641,'$uri'=>622,'$buf'=>618,'$handler'=>608,'$default'=>598,'$table'=>594,'$content'=>578,'$reader'=>558,'$resource'=>549,'$application'=>549,'$tokens'=>541,'$locale'=>539,'$attribute'=>531,'$format'=&g吨;518,'$filename'=>510,'$className'=>509,'$str'=>505,'$parts'=>505,'$matcher'=>499,'$text'=>498,'$queue'=>483,'$generator'=>480,'$filter'=>476,'$client'=>475,'$level'=>468,'$domain'=>467,'$writer'=>464,'$argument'=>460,'$number'=>459,'$option'=>452,'$payload'=>448,'$keys'=>445,'$process'=>444,'$translator'=>437,'$app'=>435,'$listener'=>430,'$files'=>429,'$index'=>422,)五、常用自定义数数组('once'=>1292,'with'=>1105,'get'=>997,'expects'=>700,'method'=>651,'set'=>612,'create'=>600,'add'=>588,'foo'=>464,'format'=>434,'write'=>429,'execute'=>421,'all'=>378,'evaluate'=>344,'has'=>320,'register'=>318,'fail'=>294,'find'=>286,'run'=>284,'any'=>280,'start'=>254，'parse'=>233，'load'=>203，'make'=>200，'read'=>191，'generate'=>185，'factory'=>182，'close'=>164,'current'=>155,'render'=>152,'ask'=>149,'numerify'=>146,'will'=>145,'where'=>137,'singleton'=>133,'writeln'=>128,'valid'=>125,'next'=>124,'main'=>122,'send'=>121,'trans'=>117,'request'=>116,'option'=>113,'handle'=>112,'matches'=>111,'match'=>110,'contains'=>103,'write_shortstr'=>103,'process'=>101,'never'=>100,'at'=>99,'initialize'=>97,'rewind'=>96,'bind'=>92,'validate'=>90,'dispatch'=>88,'过滤器'=>86，'in'=>86，'复制'=>85，'验证'=>84，'删除'=>83，'wrap'=>81，'put'=>79，'停止'=>78,'模拟'=>78,'转储'=>78,'支持'=>78,'观察'=>77,'encrypt'=>77,'attach'=>75,'first'=>74,'apply'=>73,'remove'=>72,'invoke'=>72,'connection'=>71,'advance'=>69,'decrypt'=>69,'ordered'=>69,'save'=>68,'resolve'=>68,'prepare'=>67,'println'=>67,'auth'=>65,'reset'=>65,'bar'=>64,'write_short'=>64,'call'=>63,'map'=>63,'compare'=>63,'string'=>62,'log'=>62,'wait'=>61,'info'=>61,'update'=>60,'escape'=>60,'lookup'=>58,'write_bits'=>57,'count'=>57,'push'=>56,'times'=>55,)后面的数字代表代码中出现的次数，我用的是四项的vendor目录，其中是一些常用的开源代码库，可以作为参考作者：唐青松日期：2020-06-30
