PHP常用内置函数，php内置$_SERVER['SCRIPT_NAME'] 返回/mantis/test。php 相对路径__FILE__返回文件的绝对路径$_SERVER['HTTP_X_FORWARDED_PROTO']$_SERVER['HTTPS']$_SERVER['SERVER_PORT']$_SERVER['REQUEST_URL']$GLOBALSexplodeimplode$_SERVER['SERVER_NAME']$_SERVER['HTTP_HOST']$_SERVER['SERVER_ADDR']trimbasenamedirnamekrsortset_time_limit()time()is_string()is_boolis_Inteteris_floatstrtotimefile_existsfopen()feof()fgets()trim()strlen()str_replaceissetstrpo$_SERVER['SERVER_SOFEWARE']realpathDIRECTORY_SEPARATORPATH_SEPARATORset_include_pathget_include_pathcount()substr()$_SERVER['LOCAL_ADDR']$_SERVER['REMOTE_ADDR']array_padmemory_get_usage()spl_atuoload_registerstrtolower()preg_replacepreg_matchceil()floor()round()http://www。
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  php 相对路径 __FILE__返回文件的绝对路径 $_SERVER['HTTP_X_FORWARDED_PROTO'] $_SERVER['HTTPS。