what is web services in php ?

1. Create new folder and rename it to "server" on your server space
2. ( local user just create in htdocs. )
3. Download Nusoap library from
4. nusoap it is zip file
5. You have to extract the "lib" folder from it and paste to web root(I.E htdocs).
6. Now create new php file in sever folder and rename it to "server.php"
7. Paste the following code in it.
server.php

error_reporting(0);
 //include required class for build nnusoap web service server
 require_once('../lib/nusoap.php');
 // Create server object
 $server = new soap_server();
 // configure WSDL
 $server->configureWSDL('PHP Web Services return array', 'urn:returnArray');
 // Complex Type Struct for return array

$server->wsdl->addComplexType('array_php',
 'complexType',
 'struct',
 'all',
 '',
 array(
 'id' => array('id' => 'id', 'type' => 'xsd:string'),
 'firstname' => array('name' => 'firstname', 'type' => 'xsd:string'),
 'lastname' => array('name' => 'lastname', 'type' => 'xsd:string'),
 'email' => array('name' => 'email', 'type' => 'xsd:string')
 )
 );
 $server->wsdl->addComplexType('return_array_php',
 'complexType',
 'array',
 'all',
 'SOAP-ENC:Array',
 array(),
 array(
 array('ref'=>'SOAP-ENC:arrayType','wsdl:arrayType'=>'tns:array_php[]')
 ),
 'tns:array_php'
 );
 
 $server->register('get_data',
 array('limit_start' => 'xsd:int','limit_end' => 'xsd:int'),
 array('return' => 'tns:return_array_php'),
 $ns,
 $ns.'#get_data',
 'rpc',
 'encoded',
 'Returns array data in php web service'
 );
 
 function get_data($limit_start,$limit_end) 
 {
 
 /* you can use mysql and your logic here
 this is sample array */
 
 $array_rtr=array();
 $array_rtr[0]['id']=0;
 $array_rtr[0]['firstname']='Nikunj';
 $array_rtr[0]['lastname']='Gandhi';
 $array_rtr[0]['email']='Nik_gandhi007@yahoo.com';
 
 $array_rtr[1]['id']=1;
 $array_rtr[1]['firstname']='ABC';
 $array_rtr[1]['lastname']='EGF';
 $array_rtr[1]['email']='ABC@yahoo.com';
 
 $array_rtr[2]['id']=2;
 $array_rtr[2]['firstname']='XYZ';
 $array_rtr[2]['lastname']='ZYX';
 $array_rtr[2]['email']='XYZ@yahoo.com';
 
 $array_rtr[3]['id']=3;
 $array_rtr[3]['firstname']='zcds';
 $array_rtr[3]['lastname']='asdsa';
 $array_rtr[3]['email']='dxds@yahoo.com';
 
 $array_rtr[4]['id']=4;
 $array_rtr[4]['firstname']='zxyctuzy';
 $array_rtr[4]['lastname']='zxkjch';
 $array_rtr[4]['email']='xyx@yahoo.com';
 
 $array_rtr[5]['id']=5;
 $array_rtr[5]['firstname']='sdd';
 $array_rtr[5]['lastname']='dss';
 $array_rtr[5]['email']='dss@yahoo.com';
 
 $array_rtr[6]['id']=6;
 $array_rtr[6]['firstname']='sa';
 $array_rtr[6]['lastname']='aZz';
 $array_rtr[6]['email']='axz@yahoo.com';
 
 $array_rtr[7]['id']=7;
 $array_rtr[7]['firstname']='xxz';
 $array_rtr[7]['lastname']='xcx';
 $array_rtr[7]['email']='zxz@yahoo.com';
 
 $array_rtr[8]['id']=8;
 $array_rtr[8]['firstname']='zxx';
 $array_rtr[8]['lastname']='eee';
 $array_rtr[8]['email']='eee@yahoo.com';
 
 $array_rtr[9]['id']=9;
 $array_rtr[9]['firstname']='xxxs';
 $array_rtr[9]['lastname']='ssa';
 $array_rtr[9]['email']='sssw@yahoo.com';
 
 $return=array();
 for($i=$limit_start;$i<=$limit_end;$i++){
 
 $return[$i]=$array_rtr[$i]; 
 
 }
 
 return $return;
 }
 
 
 $server->service($HTTP_RAW_POST_DATA);