The examples in this article describe the usage of PHP message queue. Share it with everyone for your reference, the details are as follows:
This message queue is used for process communication under Linux
#根据路径和后缀创建一个id $key = ftok(__DIR__, 'R'); #获取队列中的消息 $q = msg_get_queue($key); #删除队列 msg_remove_queue($q); #获取队列的状态信息 $status = msg_stat_queue($q); print_r($status); echo "\n"; for($i=0;$i1), true, false , $errorcode); var_dump($errorcode); } /** 接收消息 resource $queue , int $desiredmsgtype , int &$msgtype , int $maxsize , mixed &$message [, bool $unserialize = true [, int $flags = 0 [, int &$errorcode ]]] $desiredmsgtype:0表示从队列最前面开始返回数据, bigger 0:具体的某个队列 $maxsize:数据最大值,获取的消息如果》此值则出错 $msgtype:消息的具体类型, 因为$desiredmsgtype可以不指定类型,即指定为0 $flags:MSG_IPC_NOWAIT 如果队列为空直接返回(不阻塞), MSG_EXCEPT MSG_NOERROR 参见手册 */ $data = msg_receive($q, 0, $type, 200, $msg); var_dump($data); echo "\n"; var_dump($type); echo "\n"; var_dump($msg); echo "\n";
Queue status information: For specific reference manual
Array ( [msg_perm.uid] => 1015 [msg_perm.gid] => 100 [msg_perm.mode] => 438 [msg_stime] => 0 [msg_rtime] => 0 [msg_ctime] => 1411830331 [msg_qnum] => 0 [msg_qbytes] => 65536 [msg_lspid] => 0 [msg_lrpid] => 0 )
Use the ipc command to view it under Linux. The ipcrm command can be deleted
Readers who are interested in more PHP-related content can check out the special topics of this site: "Introduction Tutorial on PHP Basic Syntax", "Summary of PHP Error and Exception Handling Methods", "Summary of PHP Programming Algorithms" and " PHP object-oriented programming introductory tutorial"
I hope this article will be helpful to everyone in PHP programming.
The above introduces the analysis of PHP message queue usage examples, including aspects of content. I hope it will be helpful to friends who are interested in PHP tutorials.

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。

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。

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。

在PHP中,可以利用implode()函数的第一个参数来设置没有分隔符,该函数的第一个参数用于规定数组元素之间放置的内容,默认是空字符串,也可将第一个参数设置为空,语法为“implode(数组)”或者“implode("",数组)”。


Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

Safe Exam Browser
Safe Exam Browser is a secure browser environment for taking online exams securely. This software turns any computer into a secure workstation. It controls access to any utility and prevents students from using unauthorized resources.

ZendStudio 13.5.1 Mac
Powerful PHP integrated development environment

SublimeText3 English version
Recommended: Win version, supports code prompts!

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools
