Web Application VS Windows Application
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@IT-ADMIN said:
but wait you told me that my php code can handle this, how ?? because i think if i use sql only i have to refresh the page in order to get the data from the DB, but ajax for example send an xmlhttprequest with the argument needed into another php file without refreshing the page,
SQL is the database on the backend. AJAX is for the GUI on the front end. One does not affect the other. You are tying components in your mind that aren't related.
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@IT-ADMIN said:
please if you know something new that do the same thing update me, because i'm expired hhhhh
Every modern web application framework does all of this automatically. You are talking about "underpinnings" that are no longer things that the developers need to really think about, especially not at this level.
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It can also be done with jQuery (the javascript library) or one of the others to update just parts of the page without having to refresh your whole browser screen. That can complicate development in some ways, while making things easier in others.
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@dafyre said:
It can also be done with jQuery (the javascript library) or one of the others to update just parts of the page without having to refresh your whole browser screen. That can complicate development in some ways, while making things easier in others.
yeah myself using jquery to update only some element in the DOM, but off course after receiving the data via ajax, is there any framework in php that does this ?? how do you deal with this scenario dear @dafyre ?? maybe you are using websocket as Mr scott mention ?? because me i'm still using ajax and json but based on Scott i'm expired lol, i wan to update myself
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@IT-ADMIN said:
yeah myself using jquery to update only some element in the DOM, but off course after receiving the data via ajax, is there any framework in php that does this ??
This is very common.
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@IT-ADMIN said:
@dafyre said:
It can also be done with jQuery (the javascript library) or one of the others to update just parts of the page without having to refresh your whole browser screen. That can complicate development in some ways, while making things easier in others.
yeah myself using jquery to update only some element in the DOM, but off course after receiving the data via ajax, is there any framework in php that does this ?? how do you deal with this scenario dear @dafyre ?? maybe you are using websocket as Mr scott mention ?? because me i'm still using ajax and json but based on Scott i'm expired lol, i wan to update myself
I use jQuery for all of my ajax stuff, so I don't have to think quite so hard about it. But I don't deal with JSON too often (my latest project requires me to, so that's a plus). I've not dealt with Websockets yet. Got too many tinkering projects to tinker with these days... and sadly not many of them are PHP projects yet.
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@scottalanmiller said:
@johnhooks said:
@scottalanmiller said:
@johnhooks said:
@scottalanmiller said:
@johnhooks said:
@scottalanmiller said:
@johnhooks said:
Ya mine's using close to 2GB
Are you sure? I don't think that tool tell syou how much is used.
That's the RAM for each VM and the host. 8% is allocated for the dom0.
I mean, didi you run free to see what was REALLY used?
Used is like 702, I changed the response above.
I'm not going to be confident in that number till someone shows me the real free -m output rather than something translated for me.
ok......
I see you using 497, not 702. More than expected, less than stated.
Ah I was looking at swap included my bad.
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Check out Laravel, that's a modern leader for PHP.
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@dafyre said:
@IT-ADMIN said:
@dafyre said:
It can also be done with jQuery (the javascript library) or one of the others to update just parts of the page without having to refresh your whole browser screen. That can complicate development in some ways, while making things easier in others.
yeah myself using jquery to update only some element in the DOM, but off course after receiving the data via ajax, is there any framework in php that does this ?? how do you deal with this scenario dear @dafyre ?? maybe you are using websocket as Mr scott mention ?? because me i'm still using ajax and json but based on Scott i'm expired lol, i wan to update myself
I use jQuery for all of my ajax stuff, so I don't have to think quite so hard about it. But I don't deal with JSON too often (my latest project requires me to, so that's a plus). I've not dealt with Websockets yet. Got too many tinkering projects to tinker with these days... and sadly not many of them are PHP projects yet.
lol, you also still using ajax like me, but pay attention we are considered expired based on Mr Scott, hhhh just joking
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@IT-ADMIN said:
@dafyre said:
@IT-ADMIN said:
@dafyre said:
It can also be done with jQuery (the javascript library) or one of the others to update just parts of the page without having to refresh your whole browser screen. That can complicate development in some ways, while making things easier in others.
yeah myself using jquery to update only some element in the DOM, but off course after receiving the data via ajax, is there any framework in php that does this ?? how do you deal with this scenario dear @dafyre ?? maybe you are using websocket as Mr scott mention ?? because me i'm still using ajax and json but based on Scott i'm expired lol, i wan to update myself
I use jQuery for all of my ajax stuff, so I don't have to think quite so hard about it. But I don't deal with JSON too often (my latest project requires me to, so that's a plus). I've not dealt with Websockets yet. Got too many tinkering projects to tinker with these days... and sadly not many of them are PHP projects yet.
lol, you also still using ajax like me, but pay attention we are considered expired based on Mr Scott, hhhh just joking
that you are coding it yourself is the issue, everyone uses AJAX for the past decade or more.
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Check out this list, only two years old.
http://mashable.com/2014/04/04/php-frameworks-build-applications/#UhWiFqMrMGqr
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@IT-ADMIN said:
@dafyre said:
@IT-ADMIN said:
@dafyre said:
It can also be done with jQuery (the javascript library) or one of the others to update just parts of the page without having to refresh your whole browser screen. That can complicate development in some ways, while making things easier in others.
yeah myself using jquery to update only some element in the DOM, but off course after receiving the data via ajax, is there any framework in php that does this ?? how do you deal with this scenario dear @dafyre ?? maybe you are using websocket as Mr scott mention ?? because me i'm still using ajax and json but based on Scott i'm expired lol, i wan to update myself
I use jQuery for all of my ajax stuff, so I don't have to think quite so hard about it. But I don't deal with JSON too often (my latest project requires me to, so that's a plus). I've not dealt with Websockets yet. Got too many tinkering projects to tinker with these days... and sadly not many of them are PHP projects yet.
lol, you also still using ajax like me, but pay attention we are considered expired based on Mr Scott, hhhh just joking
H aha ha. I know I'm behind the times, but not completely expired. Being expired means you can't make the code do what you want... and I'm not quite that far gone yet.
@scottalanmiller -- That's twice I've heard the name Laravel this week... Guess it's time to go check it out.
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ok guys thank you all, it is midnight in here, see you tomorrow with new question and fun discussions,
good evening
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good morning guys
@dafyre: i tried redbeansPHP, it make the DB manipulation very easy, but i have problem, the performance is dramatically reduced, before for example when i display all records of a specific table it displayed immediatley, now after using RedBeansPHP, it take about 2 sec to display the table even if this table contain about 20 record, i wonder if this table contains 200 record maybe it will take 4 sec, after doing some researches i found that ORMs hurt performance too much,
@dafyre how you manage this issue of performance ?? -
@IT-ADMIN said:
... after doing some researches i found that ORMs hurt performance too much,
I have to say, this is a silly statement. ORMs are not all the same thing and do not do things in the same ways. Experience with one gives you no experience with another. ORMs are pretty much the only means of writing software today. Any extra layer will add overhead, of course, but two seconds of overhead? No, something is wrong. Either there is a code problem here, or a caching one, or a misunderstanding of what is happening or just a bad framework (I don't know this one, I can't comment on it.)
ORMs are used in basically all enterprise software at all levels and have been for an extremely long time. In many cases they can even be faster than not having an ORM because they can do things like caching queries to speed things up that you would have to write by hand.
Think about this website (MangoLassi). Are you waiting two seconds for the system to respond? But it has millions of records and hundreds of thousands of users. Clearly the ORM is not adding the kind of overhead that you are worried about. The responses are instant. And this system has less memory and CPU than yours does.
So having an ORM is not the issue. The wrong framework perhaps, or not knowing how to use it correctly. Or a database not designed to work with it. But do not jump to the conclusion that having an ORM is the issue, it is not and there is no logical connection between what you have observed and that conclusion.
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@IT-ADMIN said:
@dafyre how you manage this issue of performance ??
I've never encountered a situation where the ORM introduced noticeable performance, it's not something you normally need to manage outside of extremely high performance databases (like those with four dedicated CPUs, 256GB of its own RAM, etc.), many TB in size, etc.
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ok, i see what you mean, i think only this ORM is not efficient, it is nothing but one php file that has so many functions ready to use (about 12000 line of code), so when i call a function for example, the php code has to scan this big php file which i guess it is the root cause of this late, i have to check other ORM
thanks
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@IT-ADMIN said:
ok, i see what you mean, i think only this ORM is not efficient, it is nothing but one php file that has so many functions ready to use (about 12000 line of code), so when i call a function for example, the php code has to scan this big php file which i guess it is the root cause of this late, i have to check other ORM
Yes, a PHP ORM would have performance issue simply because PHP is not that performant without further systems to help it. There are several ways to improve this, from Facebook's real time compiler, some caching mechanisms or just moving to PHP 7. But at the end of the day, a PHP library isn't likely the most ideal mechanism for an ORM. Many languages are real time compiled so once loaded, the ORM is very, very fast just because of that.
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@IT-ADMIN said:
good morning guys
@dafyre: i tried redbeansPHP, it make the DB manipulation very easy, but i have problem, the performance is dramatically reduced, before for example when i display all records of a specific table it displayed immediatley, now after using RedBeansPHP, it take about 2 sec to display the table even if this table contain about 20 record, i wonder if this table contains 200 record maybe it will take 4 sec, after doing some researches i found that ORMs hurt performance too much,
@dafyre how you manage this issue of performance ??I don't seem to have the issue with performance that you do. My searches and results are near instant (I have a test database with ~1000 records and ~10 or 15 fields with data in them).
I get about the same performance using RB4 that I do if I write the code to work with the database myself.
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@scottalanmiller said:
@IT-ADMIN said:
ok, i see what you mean, i think only this ORM is not efficient, it is nothing but one php file that has so many functions ready to use (about 12000 line of code), so when i call a function for example, the php code has to scan this big php file which i guess it is the root cause of this late, i have to check other ORM
Yes, a PHP ORM would have performance issue simply because PHP is not that performant without further systems to help it. There are several ways to improve this, from Facebook's real time compiler, some caching mechanisms or just moving to PHP 7. But at the end of the day, a PHP library isn't likely the most ideal mechanism for an ORM. Many languages are real time compiled so once loaded, the ORM is very, very fast just because of that.
I need to upgrade my application's development environment from XAMPP to CentOS + Nginx + PHP7 to see what kind of performance gains I can get.
