Best way to create XML stream from assoc array

[Purple]

Hi All,

What is the best way to create an XML stream from an assoc array in php.

Regards Purple

[pbmods]

Heya, Purple.

You mean something like this:

array
(
    'name'            => 'John',
    'age'            => '38',
    'orientation'    => 'up'
);
 

into this:

    <name>John</name>
    <age>38</age>
    <orientation>up</orientation>
 

?

[Purple]

Hi pbmods,

yes, thats it - I am working on a generalised function which creates datastreams for extjs. The JSON was simple, the XML doesn't appear so - my assumption is there must be an easier way..

Regards Purple

[pbmods]

Heya, Purple.

The fastest way I can think of to accomplish this would be something like this:

$xml = '<?xml version="1.0" encoding="utf-8"?><introtags ... >';
foreach( $data as $_key => $_value )
{
    $xml .= "<{$_key}>{$_value}</{$_key}>";
}
$xml .= '<closingtags ... >';
 

It's only sightly more complicated if you want to make it pretty to look at :P

[Purple]

Thanks for that pbmods,

after working with the json_encode function:

[PHP]$this->json_data = '{"'.$header.'":'.json_encode($this->queue).'}';[/PHP]

where $this->queue is an assoc array,

I think I was expecting something a little more funky :)

Thanks for your help !

Purple

[pbmods]

Heya, Purple.

Glad to hear you got it working! Good luck with your project, and if you ever need anything, post back anytime :)

[gregerly]

Heya, Purple.

The fastest way I can think of to accomplish this would be something like this:

$xml = '<?xml version="1.0" encoding="utf-8"?><introtags ... >';
foreach( $data as $_key => $_value )
{
    $xml .= "<{$_key}>{$_value}</{$_key}>";
}
$xml .= '<closingtags ... >';
 

It's only sightly more complicated if you want to make it pretty to look at :P

Hey Pbmods,

I had a question about the syntax you are using within your foreach loop, specifially the "<{$_key}>". I'm curious about the use of brackets. I've seen it before, but I'm not sure that I know what it means. What does using the { }'s do?

Thanks,

Greg

[ak1dnar]

Hey Pbmods,

I had a question about the syntax you are using within your foreach loop, specifially the "<{$_key}>". I'm curious about the use of brackets. I've seen it before, but I'm not sure that I know what it means. What does using the { }'s do?

Thanks,

Greg

It's just another way to put variables inside of a string in php, when there we have double quotes.

[gregerly]

It's just another way to put variables inside of a string in php, when there we have double quotes.

But variables (excluding array's) can be placed within a string without the use of { }'s. Does it have something to do with the way the variables are declared in the foreach loop? IE $_key => $_value?

Thanks

Greg

[pbmods]

Heya, Greg.

It's really just a style issue for me. When there's curly braces around a variable, it helps make it more obvious to me that there's a variable there. Sometimes, especially when the string is long and distinguished, the '$' gets lost. Adding a curly brace around the variable name just makes it stand out a bit more.

Complex (or "Curly") syntax, as it is called, is also useful if you need to put a variable next to an alphanumeric character in a string:

$str = $flower . 's are red';
$str = "{$flower}s are blue;";
 

Or if you want to use a multidimensional array:

$str = $ingredients['baking'][$i] . ' is sweet.';
$str = "And so are {$pronouns['personal'][$j]}";
 

Or if you need to use variable variables:

$str = "I lost my {$$obj}; can I have yours?";
 

For more information, check out this document.

PS. How's that article coming?

[ak1dnar]

But variables (excluding array's) can be placed within a string without the use of { }'s.

excluding arrays?

Does it have something to do with the way the variables are declared in the foreach loop? IE $_key => $_value?

<?Php
$myArray = array('ABC','DEF','GHI');
 
echo "{$myArray[0]}<br>";
echo "$myArray[0]<br>";
 
foreach($myArray as $key => $value){
echo "$key >> $value<br>";
}
foreach($myArray as $key => $value){
echo "{$key} >> {$value}<br>";
}
?>

So now what? Its only another way only. but there might be some..(need to read the doc)

[ak1dnar]

Sorry about your thread Purple. It's greg and pb. They gonna hijack this.

[gregerly]

Yeah, sorry to hijack the post. I'll make sure it doesn't happen again. I appreciate the info on the curly syntax. In all my books and tutorials I've ever read, I haven't come across the curly syntax often.

Again, thanks for the info.

Greg

[pbmods]

Sorry about your thread Purple. It's greg and pb. They gonna hijack this.

Hmph. [WHINE]Greg started it![/WHINE] >P

[gregerly]

Hmph. [WHINE]Greg started it![/WHINE] >P

[PHP]<?
for($i=0; $i<10000;$i++){
echo "it's not my fault! It was all Pbmods's fault, having interesting content to his posts!<br />";
}
?>[/PHP]

Greg said emphatically...i'm such a nerd.

[pbmods]

[PHP]<?
for($i=0; $i<10000;$i++){
echo "it's not my fault! It was all Pbmods's fault, having interesting content to his posts!<br />";
}
?>[/PHP]

Greg said emphatically...i'm such a nerd.

Very good. You used echo instead of print. But ++$i would give you slightly faster performance ~_^

[gregerly]

Very good. You used echo instead of print. But ++$i would give you slightly faster performance ~_^

Hows this:

[PHP]<?
$sql="SELECT * FROM `what_pbmods_knows_tbl`;"
$result=@msql_query($sql);

//loop thru what pbmods knows
while(list($everything)=@mysql_fetch_row($result)) {
//this is a trick question....this loop will run forever!
}
?>[/PHP]

[pbmods]

Hows this:

[PHP]<?
$sql="SELECT * FROM `what_pbmods_knows_tbl`;"
$result=@msql_query($sql);

//loop thru what pbmods knows
while(list($everything)=@mysql_fetch_row($result)) {
//this is a trick question....this loop will run forever!
}
?>[/PHP]

Well done, Greg.

However...

The query passed to mysql_query() [or msql_query(), if you prefer 0:) ] should not end with a semicolon (no, really).

Don't make me split this into its own thread :P

[gregerly]

Well done, Greg.

However...

The query passed to mysql_query() [or msql_query(), if you prefer 0:) ] should not end with a semicolon (no, really).

Don't make me split this into its own thread :P

Whoops, besides my typo....no semicolon?! I've never heard that before....are you pulling my leg?

[pbmods]

Whoops, besides my typo....no semicolon?! I've never heard that before....are you pulling my leg?

No, really. Check it out:

Parameters


query
A SQL query

The query string should not end with a semicolon.