php in_array function

in_array — Checks if a value exists in an array

bool in_array ( mixed $needle , array $haystack [, bool $strict = FALSE ] )

Example #1 in_array() example

<?php
$os = array("Mac", "NT", "Irix", "Linux");
if (in_array("Irix", $os)) {
    echo "Got Irix";
}
if (in_array("mac", $os)) {
    echo "Got mac";
}?>

Convert XML to CSV with PHP

PROBLEM : 
I'm using the following code to convert my XML file to a CSV format. Unfortunately, it seems to not be recognizing each entry in the XML and so the XML file ends up being blank.

<?php $filexml='test.xml'; if (file_exists($filexml)) { echo 'File Exists'; $xml = simplexml_load_file($filexml); $f = fopen('test.csv', 'w'); foreach ($xml->Item as $item) { fputcsv($f, get_object_vars($item),',','"'); } fclose($f); } ?> An example of my XML file is below... <item MaintenanceType="C"> <hazardousmaterialcode>N</HazardousMaterialCode> <itemlevelgtin GTINQualifier="UP">090127000380</ItemLevelGTIN> <partnumber>0-1848-1</PartNumber> <brandaaiaid>BBVL</BrandAAIAID> <brandlabel>Holley</BrandLabel> <partterminologyid>5904</PartTerminologyID> <descriptions> <description MaintenanceType="C" DescriptionCode="DES" LanguageCode="EN">Street Carburetor</Description> <description MaintenanceType="C" DescriptionCode="SHO" LanguageCode="EN">Crb</Description> </Descriptions> <prices> <pricing MaintenanceType="C" PriceType="JBR"> <pricesheetnumber>L30779-13</PriceSheetNumber> <currencycode>USD</CurrencyCode> <effectivedate>2013-01-01</EffectiveDate> <price UOM="PE">462.4600</Price> </Pricing> <pricing MaintenanceType="C" PriceType="RET"> <pricesheetnumber>L30779-13</PriceSheetNumber> <currencycode>USD</CurrencyCode> <effectivedate>2013-01-01</EffectiveDate> <price UOM="PE">380.5500</Price> </Pricing> <pricing MaintenanceType="C" PriceType="WD1"> <pricesheetnumber>L30779-13</PriceSheetNumber> <currencycode>USD</CurrencyCode> <effectivedate>2013-01-01</EffectiveDate> <price UOM="PE">314.4700</Price> </Pricing> </Prices> <extendedinformation> <extendedproductinformation MaintenanceType="C" EXPICode="CTO" LanguageCode="EN">US</ExtendedProductInformation> <extendedproductinformation MaintenanceType="C" EXPICode="NPC" LanguageCode="EN">A</ExtendedProductInformation> <extendedproductinformation MaintenanceType="C" EXPICode="HTS" LanguageCode="EN">8409914000</ExtendedProductInformation> <extendedproductinformation MaintenanceType="C" EXPICode="NAF" LanguageCode="EN">B</ExtendedProductInformation> </ExtendedInformation> <productattributes> <productattribute MaintenanceType="C" AttributeID="SKU" LanguageCode="EN">BBVL0-1848-1</ProductAttribute> <productattribute MaintenanceType="C" AttributeID="ModDate" LanguageCode="EN">2012-12-31</ProductAttribute> </ProductAttributes> <packages> <package MaintenanceType="C"> <packagelevelgtin>00090127000380</PackageLevelGTIN> <packageuom>EA</PackageUOM> <quantityofeaches>1</QuantityofEaches> <dimensions UOM="IN"> <height>7.5000</Height> <width>11.0000</Width> <length>12.2500</Length> </Dimensions> <weights UOM="PG"> <weight>13.500</Weight> <dimensionalweight>6.09</DimensionalWeight> </Weights> </Package> </Packages> </Item> Solution : $filexml='test.xml'; if (file_exists($filexml)) { $xml = simplexml_load_file($filexml); $f = fopen('test.csv', 'w'); createCsv($xml, $f); fclose($f); } function createCsv($xml,$f) { foreach ($xml->children() as $item) { $hasChild = (count($item->children()) > 0)?true:false; if( ! $hasChild) { $put_arr = array($item->getName(),$item); fputcsv($f, $put_arr ,',','"'); } else { createCsv($item, $f); } } }

Sorting Deep Multidimentional array PHP

Given the following array:

Array 
(
    [0] => Array
        (
            [0] => Array
                (
                    [key1] => var1
                    [key2] => var2
                    [sortOnMe] => 4
                )

            [1] => N/A
            [2] => N/A
            [3] => N/A
        )

    [1] => Array
        (
            [0] => Array
                (
                    [key1] => var1
                    [key2] => var2
                    [sortOnMe] => 2
                )

            [1] => N/A
            [2] => N/A
            [3] => N/A
        )
)

Given the following array: Array ( [0] => Array ( [0] => Array ( [key1] => var1 [key2] => var2 [sortOnMe] => 4 ) [1] => N/A [2] => N/A [3] => N/A ) [1] => Array ( [0] => Array ( [key1] => var1 [key2] => var2 [sortOnMe] => 2 ) [1] => N/A [2] => N/A [3] => N/A ) ) How can I sort this array considering the key I want is deep in the structure? I assume usort but not sure what to pass into the function?

Ans:

usort($arr, "mysortfunc");

function mysortfunc($a, $b)
{
    if ($a[0]['sortOnMe'] == $b[0]['sortOnMe'])
    {
        return 0;
    }
    else
    {
        return ($a[0]['sortOnMe'] < $b[0]['sortOnMe']) ? -1 : 1;
    }
}