Numerical Array

Jan 2, 2007

I'm still having problems telling (and coding the difference), though I know the associative array, indexes without numbers. This was my line of code PHP Code:

while ($row = mysql_fetch_array ($result,MYSQL_ASSOC) )
$viewers_home_ids[$row['viewer_id']] = $row['viewer_home_id'];

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Resetting Numerical Array

I have a loop in PHP that removes elements from an array based on a certain criteria. The array needs to be used in a Smarty SECTION tag so if there are numeric gaps between elements then I end up with NULL values being spit out. I reset an array's keys such that,

"array(2=>'data', 3=>'more data')" becomes "array(0=>'data', 1=>'more data')".

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Xml Parsing: Tags Should Be In Numerical Array?

Sample: $results = XMLParser::load('<xml ....');
$results = XMLParser::load(VSCHEMAS.'/Users.edit.xml');
* Abstract XMLParser class. A non-instantiable class that uses SimpleXML to parse XML, based on a path or body passed into the load method
* @abstract

What I'm saying here, is that it's indexing the sub-xml elements numerically, which is what I want, but only when there is more than 1. Any thoughts on what to change to always have them indexed numerically, rather than a direct reference to the one-and-only element's @attributes array?

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Array Merge With Numerical Keys?

How can make it so array_merge() overwrites two keys with different values but same key index from two arrays?

Merging:[0] => 'whatever'
[0] => 'whatever', [1] => 'a', [2] => 'b'
should produce
[0] => 'whatever', [1] => 'a', [2] => 'b'


want array_merge to behave the same way it behaves if the arrays have string keys.

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Get Array Value By Unique Key And Numerical Index

I have a two dimensional array, basically a table (see code below). I want to get a value from the array using two methods:

1) Using the row's key: $NewValue = $MyArray[$UniqueKey];

2) Using the row's index (row number, so to speak): $NewValue = $MyArray[$RowNumber];

The second print statement in the code below does not work. Both print statements should output the same value. Is there an easy way to do this? The table has hundreds of rows and I will not know the key value of row 879 nor can I generate it. So I cannot use array_keys(). And I DO NOT want to start at the first row and count up to the 879th row. Any clever ideas to share and enlighten?


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Accessing Numerical Array Index In Foreach

I have no trouble looping through an array using foreach. To keep
track of the index, I set a variable before the loop and increment it
in the loop:

$index = 0;
foreach ($array as $item) {
do something that requires knowing the index of the current item;

Is there a better way to access that index value?

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Foreach() Work For Non-numerical Array Keys?

I was wondering if foreach() works when the array looks like this:

arr_name[eggs] = something
arr_name[pencil] = something else

Will foreach work if run as:

foreach(arr_name as $key => $value)

for they keys that have a non-numerical value ?

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Stripping Out Numerical Array Keys From Var_export?

I want to do var_export() and strip out all numerical array keys on an array. My array outputs like so:

array (
2 =>
array (
1 =>
array (


By doing this I can shuffle the array values however needed without having to worry about numerical array values.

I've tried using echo preg_replace("/[0-9]+ =>/i", '', var_export($data)); but it doesn't do anything. Any suggestions? Is there something I'm not doing with my regex? Is there a better solution for this altogether?

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Sort An Array And Assign New Numerical Keys?

i have an array like this (after i unset some elements):

$array[3] = 'apple';
$array[5] = 'pear';
$array[23] = 'banana';

which function do i use to sort them to:

$array[0] = 'apple';
$array[1] = 'pear';
$array[2] = 'banana';

i tried some of the sort functions but it didnt work.

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Convert The Array Keys To Numerical Values

I have an array like such:

Array ( [a] => 'a' [b] => 'b' [c] => 'c' )

Is there an easy way to convert the keys to numerical values like such? Is there a built in function, or will I have to make one? Array ( [0] => 'a' [1] => 'b' [2] => 'c' )

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Java - Numerical Equivalent Of NameValuePair Array List?

I'm dealing with doubles and looking for the "double" equivalent of this...

ArrayList<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
nameValuePairs.add(new BasicNameValuePair("lat",lat));
nameValuePairs.add(new BasicNameValuePair("lng",lng));

edit// I'm making a HTTP request, I think need to map the lat value to a php lat variable and the long to a php variable.

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CakePHP 1.3 Validation Errors Not Showing With Numerical Indexed Array?

I've looked at loads of forums about validation errors not showing and tried various things but to no avail...

Basically, the validation is correctly recognising the fields do not have values when they should, however the error messages don't 'automagically' appear below the input boxes.

Model validation rule is shown below:

var $validate = array(
'description' => array(
'rule' => 'notEmpty',
'required' => true,


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Codeigniter Select_Sum Returns "array" Not Numerical Value?

I needed to add up all the rows for a result. Using the select_sum as followsHere is the model

function Dues_Paid_Tot($date)

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Replace Associative Array Keys With Numerical Keys?

I have an array:

array('something' => 'like this', 'something' => 'like this', 'something' => 'like this');

I would like to replace it (quickly as possible, using a simple inline function) to be like this:

array(0 => 'like this', 1 => 'like this', 2 => 'like this');

Possible using any built-in php-array functions?

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Must A Table Id Be Numerical?

I normally make table ID's int (10) auto increment, but the client wants to be able to enter their own inhouse ID's which are alpha-numberical. Can anybody tell me if this is okay and if not, why?

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Creating Numerical Ids

I have a membership script i am working with and have a question. Instead of a user entering their own username like "DrJohn99" i would like to have each user assigned a number (starting with a 0 and going up up up) and also i would like for their email address to be the login.

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Extracting A Numerical Value

I have a string value, "1,250" (one thousand, two hundred and fifty). Is there a PHP function I can apply to this string that will give me the value 1250 in a variable? I've tried "intval", but I get a value of 1 (one), at least in PHP 4.

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Adding Numerical Value From Rows

I need to add all of the numbers from a set of results and display them on my page. Is this done with a do/while loop?

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Making A Input But Numerical Only

I'm trying to make a input box on my site only accept numerical values. I thought I had it with the code below - however it still lets you put letter after the numbers ie "5454dsfsf" How can I make it numerical only?

if (ereg('^[^0-9 ]+$' , $_POST['telephone'])) {
$error_msg['telephone'] = '<div class=message>Invalid character in telephone. </div>'

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Comparing Numerical Strings

From the PHP manual:
"If you compare two numerical strings, they are compared as integers."

and from the same page, two vars are considered identical "if $a is equal to $b, and they are of the same type." Code:

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Associative Vs. Numerical Arrays

Associative Arrays seem to be more popular that Numerical Arrays. That could just be the bias from the specific sources I've read, but I was wondering what you all think. I come from a programming background and I'm used to numerical arrays. What are the advantages and disadvantages of both? I don't want this to become an argument or a thread where people are posting to try to prove their point. I just want to know what you prefer and why. No one word replies, give me a reason.

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Commas In Numerical Values

I want to know if there's a way to include commas in numerical values in a database. I have a lot of integer (INT) rows but I cannot include commas, so instead of 10,000 I can only enter 10000.

The reason I want this is because in the output, I want all numbers to have commas. Is there any way around this?

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Largest Numerical Index

var a = new Array();
a[5] = "x";
alert(a.length); // 6 representing 0-5
$a = array();
$a[5] = "x";
echo array_length($a); // shows 6 (or even a function that shows 5)

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Separated Numerical Values

My source file contains numerical information shaped like this:

et cetera

If I use (longint)$numstr I get 32 as value (logically). How can I convince php to ignore the, in these strings Probably in the manual, but I could not find an entry for this.

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Str_replace Between Two Numerical Strings?

Another problem with str_replace, I would like to change the following $title data into URL by taking the $string between number in the beginning and after dash (-)

Chicago&#39;s Public Schools - $10.3M
New Jersey - $3M
Michigan: Public Health - $1M

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Numerical String Formats!

So I have a long number. Does anyone know how to easily round it down to 2 decimal places? 4.56794821 for example:

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