新版PHP極大的增強(qiáng)功能和性能
Jun 21, 2016 am 09:14 AM性能
在經(jīng)過(guò)長(zhǎng)達(dá)8個(gè)月的開(kāi)發(fā)和測(cè)試以后,PHP 4.3.0正式發(fā)布了。就范圍,時(shí)間,成就方面而言,這是最全面的PHP發(fā)行版,而且,作為綜合用途的腳本語(yǔ)言舞臺(tái)的一個(gè)重要的競(jìng)爭(zhēng)者,它將更進(jìn)一步的提高了PHP的地位。
命令行界面
這個(gè)版本最終完成了獨(dú)立的命令行界面(CLI),這可以(配合PHP-GTK一起)用于開(kāi)發(fā)內(nèi)核和桌面應(yīng)用程序。CLI是內(nèi)建部分,但是在配置過(guò)程中,只有當(dāng)CGI版本使用--disable-cgi開(kāi)關(guān)時(shí)候,才自動(dòng)安裝;或者使用make install-cli 。在Windows系統(tǒng)中,可以在cli目錄找到CLI。
與其他服務(wù)器API相比較,CLI有許多的不同。請(qǐng)?jiān)凇癙HP手冊(cè):命令行中使用PHP”一章中找到更詳細(xì)的內(nèi)容。
Streams流
streams流API是一個(gè)非常重要的未披露的特征。在PHP內(nèi)核和擴(kuò)展中,引進(jìn)了統(tǒng)一的方法來(lái)處理文件、管道、sockets和其他I/O資源。
這意味著對(duì)用戶(hù)來(lái)說(shuō),任何使用streams流的I/O函數(shù)(和幾乎所有這些函數(shù))可以訪問(wèn)內(nèi)置的協(xié)議,例如HTTP/HTTPS和FTP/FTPS,也可以通過(guò)PHP腳本登記使用自定義協(xié)議。請(qǐng)參考“已支持的協(xié)議/包列表”以獲取更詳細(xì)的內(nèi)容。
新安裝系統(tǒng)
安裝系統(tǒng)在其他重復(fù)的地方,使用了一個(gè)全局的Makefile代替了緩慢的遞歸,并且降低了固定的相關(guān)性的綜合程度。aclocal工具只需要automake。整個(gè)安裝過(guò)程更輕便,消耗更少資源。
改進(jìn)
PHP 4.3.x有許多的改進(jìn)和增強(qiáng)的地方:
捆綁發(fā)行GD庫(kù)而且推薦一直使用捆綁的版本的GD庫(kù)
vpopmail和cybermut擴(kuò)充移到PECL
刪除幾個(gè)不常用的擴(kuò)充(aspell, ccvs, cybercash, icap)和SAPIs(fastcgi,fhttpd)
提高了各種字符串處理函數(shù)的速度
刪除Apache2過(guò)濾器,還在實(shí)驗(yàn)中(由于許多擴(kuò)充基于外部的庫(kù)是不安全的,在prefork中使用PHP和工人模式)
修正各種安全隱患(imap, mysql, mcrypt, file upload, gd等等)
在其他應(yīng)用程序植入新的SAPI到PHP中(實(shí)驗(yàn)性)
大量的測(cè)試套件
在dba, gd, pcntl, sybase和xslt擴(kuò)展重要的改進(jìn)
新增的debug_backtrace()有助于調(diào)試
現(xiàn)在錯(cuò)誤信息可以鏈接到描述錯(cuò)誤或者函數(shù)問(wèn)題的網(wǎng)頁(yè)
Zend引擎修正小錯(cuò)誤和做了小的性能的提高
大量的其他修正,更新和新功能等等

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