Google Contacts to LDAP (ldif) converter

#!/usr/bin/env php
<?php
// Google Contacts csv to ldif (LDAP) converter
// Credits pc_magas, George Rousopoulos
// You can transform greek to greeklish csv here https://www.datagen.gr/index.php?option=scripts&script=greek_to_greeklish
// Input CSV
$csv_file="contacts.csv";

// Output file
$ldap="contacts.ldif";

/**
* ###################### Do not edit ellow this line ##################
*/

$ldapHandler=fopen($ldap,"w");

$csv_file_handler=fopen($csv_file,"r");


$recordHeader=",ou=Users,dc=mydomain,dc=gr".PHP_EOL."objectclass: inetOrgPerson".PHP_EOL;

$firstLineSkip=true;

if (($csv_file_handler=fopen($csv_file,"r")) !== FALSE) {
    while (($data = fgetcsv($csv_file_handler, 1000, ",")) !== FALSE) {

        if($firstLineSkip) {
         $firstLineSkip=false;
         continue;
        }
        $uniqid=uniqid();
        $mail=trim($data[30]);
        $cn=trim($data[0]);
        $sn=trim($data[3]);
        $givenName=$data[1];
        $mobile=str_replace(' ','',$data[37]);
        $mobile=str_replace('+30','',$mobile);
        $mobile=str_replace('+','00',$mobile);
        $phone=str_replace(' ','',$data[39]);
        $phone=str_replace('+30','',$phone);
        $phone=str_replace('+','00',$phone);

        $record='dn: uid='.$uniqid.''.$recordHeader;
        $record.='cn: '.$cn.PHP_EOL;
        $record.='sn: '.$cn.PHP_EOL;
        $record.='givenName: '.$cn.PHP_EOL;

        if (!empty($mail)) {
    $record.='mail: '.$mail.PHP_EOL;
}
        if (!empty($mobile)) {
        $record.='mobile: '.$mobile.PHP_EOL;
}
        if (!empty($phone)) {
    $record.='telephoneNumber: '.$phone.PHP_EOL;
}

        $record.='uid: '.$uniqid.PHP_EOL;

        fwrite($ldapHandler,$record.PHP_EOL.PHP_EOL);
    }
}

fclose($ldapHandler);
fclose($csv_file_handler);