| Re: How to convert this PHP into JavaScript [message #173173 is a reply to message #173171] |
Fri, 25 March 2011 23:23   |
sheldonlg
Messages: 166
Registered: September 2010
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Senior Member |
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On 3/25/2011 5:01 PM, Jerry Stuckle wrote:
> On 3/25/2011 4:51 PM, Denis McMahon wrote:
>> On Fri, 25 Mar 2011 15:22:42 -0400, Jerry Stuckle wrote:
>>
>>> On 3/25/2011 2:59 PM, sheldonlg wrote:
>>>> On 3/24/2011 12:50 PM, Jerry Stuckle wrote:
>>>> > On 3/24/2011 10:23 AM, Oltmans wrote:
>>>> >> Hi PHP gurus, I hope you're doing well.
>>>> >>
>>>> >> I'm trying to convert a PHP script into JavaScript. I'm posting here
>>>> >> because I don't know much PHP and I hope someone among you can help.
>>>> >> Here is the PHP
>>>> >>
>>>> >> array(
>>>> >> 'abc' => '1 AND (2 OR
>>>> >> 3)', // Define how to
>>>> >> use the following criteria
>>>> >> 'def' => array('marketing_campaign_id', 'status', 'status'), //
>>>> >> Filter by these three criteria 'ghi' => array('eq', 'eq',
>>>> >> 'eq')
>>>> >> );
>>>> >>
>>>> >>
>>>> >> I need to convert above into JavaScript object which looks like
>>>> >>
>>>> >> {
>>>> >>
>>>> >> 'abc' : '1 AND (2 OR 3)'
>>>> >> }
>>>> >>
>>>> >>
>>>> >> but I don't know how to convert
>>>> >>
>>>> >> array('marketing_campaign_id', 'status', 'status')
>>>> >>
>>>> >> into equivalent JavaScript. Can someone please let me know how to
>>>> >> convert above into JavaScript? I will really appreciate your help in
>>>> >> this regard. Thanks!
>>>> >
>>>> > If you want to write javascript, you should ask in a javascript
>>>> > newsgroup.
>>>> >
>>>> >
>>>> No Jerry, not this time. He has a PHP array and he wants to use that
>>>> PHP array to generate a script in javascript. That means that knowledge
>>>> of BOTH is required.
>>>>
>>>> This is more properly asked here in this PHP group than in the
>>>> Javascript group. Everyone here also knows at least SOME Javascript.
>>>> The reverse is not true for the Javascript group. People there may not
>>>> know ANY PHP (though most seem to).
>>>>
>>>>
>>> No, Sheldon, he needs to be in comp.lang.javascript - where some of the
>>> people there know PHP.
>>>
>>> The first thing he needs is the appropriate javascript he needs - i.e.
>>> hand coding it. The generating the appropriate javascript from the
>>> array is simple.
>>>
>>> Now, if he would have said "I have this javascript I need to generate
>>> from this PHP array...", I would agree this is more appropriate.
>>
>> It does depend on your viewpoint of what he's asking.
>>
>> My viewpoint is that he has a server side php application that generates
>> a (two dimensional associative) array in php, and that he subsequently
>> wants to use the data in that array client side with javascript running
>> in a website viewers browser.
>>
>> So, I see his problem as being "how do I pass the information contained
>> in this (two dimensional associative) array in my php script on the
>> server into the webpage that I am generating to send to the website
>> viewers client browser so that it can be used by scripts running in a
>> client side context on that web page?"
>>
>> My solution is to create a JSON string representation of his (two
>> dimensional associative) array, and put that string into the heredoc
>> output in a way that the javascript will create a javascript object that,
>> whilst not technically a (two dimensional associative) array, is similar
>> enough to one in structure that he can access the data elements of it in
>> a manner that correlates to the keys in the original php (two dimensional
>> associative) array.
>>
>> Doubtless there are other solutions, if his array always had the same
>> structure and format, he could write code to generate whatever javascript
>> representation of the array he wished[1], but the json approach means
>> that if the structure of his php generated array changes, the transfer of
>> that array into a javascript object is probably robust enough to not need
>> "tweaking", and the only changes he's likely to have to make to his
>> javascript will be how he uses the modified object, without having to
>> worry about restructuring the conversion from the php array to the
>> javascript object.
>>
>> Rgds
>>
>> Denis McMahon
>>
>
> <snip>
>
>
> Personally, I think a much easier solution would be to just generate the
> javascript in the page - no json overhead, no extra calls to the server
> or anything else.
>
> As for the structure of the PHP array changing - he'll have the same
> problem with his javascript either way - he'll have to change the PHP
> code creating the json data and/or the javascript to process it.
>
> But either way, he still needs to know what he wants for his javascript.
>
I just, two days ago, had a need to do just that. What I did was:
print "<script>\n";
print " var foo = new Array();\n";
print " foo[0] = " . $foo[0] . ";\n";
etc. (generating the array for javascript)
print " function myFunc(i) { \n";
print " ...... do stuff with the foo[i] ......\n";
print " }\n";
print "</script\n";
and then have the function myFunc called as needed later in the page.
--
Shelly
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