I have seen people say in the group that some Swoole frameworks are slow to start, especially when running on a mounted network hard disk.
I think that since Swoole can make PHP applications resident in memory, many files must be scanned and loaded during startup. This should be the culprit of slow startup speed.
Thinking of php and the phar package, I tried to use phar to solve this problem. The hard work paid off. I finally implemented the compatibility and support of phar packaging for the imi framework. The test results show:
Use Phar to enumerate, read, and include files, whether on a local hard disk or on a network such as Samba. The performance of file sharing mounting is stronger than that of scattered files.
phar is powerful and you can directly use a package to deploy projects, but in traditional PHP application development, phar is actually not popular because it does not have many benefits. In the Swoole environment, more and more frameworks support resident memory, which can load the files you want to use at startup.
phar has built-in support since PHP 5.3.0, so there is no need to worry about compatibility or install additional extensions.
I specially wrote a Demo to test the performance of Phar file enumeration, reading, and include:
https://gitee.com/yurunsoft/PharTest
Interested friends can download it and run it yourself.
To start the Phar file packaging function, you must first configure phar.readonly = Off in php.ini
The Phar packaging code is mainly as follows:
<?php $fileName = __DIR__ . '/test/test.phar'; if(is_file($fileName)) { unlink($fileName); } $phar = new Phar($fileName); $phar->stopBuffering(); $phar->buildFromDirectory(__DIR__ . '/src');
The actual application situation is complicated , you can refer to the official PHP documentation and make slight modifications according to the actual situation.
The above is the detailed content of PHP's Phar package turns out to be so powerful. For more information, please follow other related articles on the PHP Chinese website!

php把负数转为正整数的方法:1、使用abs()函数将负数转为正数,使用intval()函数对正数取整,转为正整数,语法“intval(abs($number))”;2、利用“~”位运算符将负数取反加一,语法“~$number + 1”。

实现方法:1、使用“sleep(延迟秒数)”语句,可延迟执行函数若干秒;2、使用“time_nanosleep(延迟秒数,延迟纳秒数)”语句,可延迟执行函数若干秒和纳秒;3、使用“time_sleep_until(time()+7)”语句。

php除以100保留两位小数的方法:1、利用“/”运算符进行除法运算,语法“数值 / 100”;2、使用“number_format(除法结果, 2)”或“sprintf("%.2f",除法结果)”语句进行四舍五入的处理值,并保留两位小数。

判断方法:1、使用“strtotime("年-月-日")”语句将给定的年月日转换为时间戳格式;2、用“date("z",时间戳)+1”语句计算指定时间戳是一年的第几天。date()返回的天数是从0开始计算的,因此真实天数需要在此基础上加1。

php字符串有下标。在PHP中,下标不仅可以应用于数组和对象,还可应用于字符串,利用字符串的下标和中括号“[]”可以访问指定索引位置的字符,并对该字符进行读写,语法“字符串名[下标值]”;字符串的下标值(索引值)只能是整数类型,起始值为0。

方法:1、用“str_replace(" ","其他字符",$str)”语句,可将nbsp符替换为其他字符;2、用“preg_replace("/(\s|\ \;||\xc2\xa0)/","其他字符",$str)”语句。

在php中,可以使用substr()函数来读取字符串后几个字符,只需要将该函数的第二个参数设置为负值,第三个参数省略即可;语法为“substr(字符串,-n)”,表示读取从字符串结尾处向前数第n个字符开始,直到字符串结尾的全部字符。

php判断有没有小数点的方法:1、使用“strpos(数字字符串,'.')”语法,如果返回小数点在字符串中第一次出现的位置,则有小数点;2、使用“strrpos(数字字符串,'.')”语句,如果返回小数点在字符串中最后一次出现的位置,则有。


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