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<blockquote data-quote="Chris84" data-source="post: 84615" data-attributes="member: 16828"><p>Ok, no good news. The dream of an easy php script doing all the work seems to die. Decoding the binary structure with php seems to be impossible to us or is just a bit to complex and timewasting for saving some bytes of memory.</p><p>But there must be a way, without using asp.net on Apache. At study actualy i'm writing an webinterface for a robot. Diffrent implementation but identical problem.</p><p>PHP's possibilitys to communicate with RS232 is limited, so we also have to implement a translator.</p><p>Our first tries are to do this by a short C program executed by PHP. Why not doing the same here. Writing a small tool, able to give back the required data, controled by some starting parameters. Should be faster than the Apache Dot.Net implementation and all the resources should be given free after finishing its job.</p><p>Btw. SOAP is a good idea, to create an open standard Communication. So if there are a lot of programs communicating with each other. But SOAP has also a big disadvantage. It's blowing up the transfered data up to 25 times and takes a lot of CPU time to encode/decode compared with other methodes of data exchange.</p><p></p><p>A disadvantage of not using soap is: We have to define the structure of data, before starting and will be fixed to this structure.</p><p></p><p>I hope you don't get me wrong. Even if it sounds a bit like criticising a lot of the done work, it's not my concern to talk everything existing bad. I'm simply new to this and want to give some startings for discussion, maybe you had a lot of my ideas earlier and dropped same due to an good reason.</p><p></p><p>Btw. internet is a nice development, but communication is slow, if both communication partners are living on the other side of planet earth. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p><p></p><p>So long</p><p></p><p>Chris84</p></blockquote><p></p>
[QUOTE="Chris84, post: 84615, member: 16828"] Ok, no good news. The dream of an easy php script doing all the work seems to die. Decoding the binary structure with php seems to be impossible to us or is just a bit to complex and timewasting for saving some bytes of memory. But there must be a way, without using asp.net on Apache. At study actualy i'm writing an webinterface for a robot. Diffrent implementation but identical problem. PHP's possibilitys to communicate with RS232 is limited, so we also have to implement a translator. Our first tries are to do this by a short C program executed by PHP. Why not doing the same here. Writing a small tool, able to give back the required data, controled by some starting parameters. Should be faster than the Apache Dot.Net implementation and all the resources should be given free after finishing its job. Btw. SOAP is a good idea, to create an open standard Communication. So if there are a lot of programs communicating with each other. But SOAP has also a big disadvantage. It's blowing up the transfered data up to 25 times and takes a lot of CPU time to encode/decode compared with other methodes of data exchange. A disadvantage of not using soap is: We have to define the structure of data, before starting and will be fixed to this structure. I hope you don't get me wrong. Even if it sounds a bit like criticising a lot of the done work, it's not my concern to talk everything existing bad. I'm simply new to this and want to give some startings for discussion, maybe you had a lot of my ideas earlier and dropped same due to an good reason. Btw. internet is a nice development, but communication is slow, if both communication partners are living on the other side of planet earth. :) So long Chris84 [/QUOTE]
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