Getting emails after a specific date with php-ews (Exchange Web Services)

Question

In my PHP script, I need to figure out how to retrieve all emails that are either after a specified message ID or after a specific date (Either will work, I just need to retrieve emails that are new since the last time I scraped the inbox). This inbox is getting thousands of emails a day, and I can't delete any emails for 30 days. For the initial import I was just doing an offset from the beginning of the inbox, but obviously that won't work once we start cleaning out emails. I think I have to set the $Restriction property of the class "EWSType_FindItemType", but I don't think the necessary classes exist in php-ews for me to do this. I've tried to add them myself, but I don't understand enough about EWS or SOAP. So far the only thing I've come up with is this: ``` $Request->Restriction = new EWSType_RestrictionType(); $Request->Restriction->IsGreaterThan = new stdClass; $Request->Restriction->IsGreaterThan->FieldURIOrConstant = new stdClass; $Request->Restriction->IsGreaterThan->Field…

Accepted Answer

Restriction are tricky in EWS, true. You can take a look at haw they are used in EWSWrapper, here's example how to create AND restriction to get items in between date range:

```
//create AND restrction
$request->Restriction = new EWSType_RestrictionType();
$request->Restriction->And = new EWSType_AndType();

$request->Restriction->And->IsGreaterThanOrEqualTo = new EWSType_IsGreaterThanOrEqualToType();
$request->Restriction->And->IsGreaterThanOrEqualTo->ExtendedFieldURI = new EWSType_PathToExtendedFieldType;
$request->Restriction->And->IsGreaterThanOrEqualTo->ExtendedFieldURI->DistinguishedPropertySetId = "Task";
$request->Restriction->And->IsGreaterThanOrEqualTo->ExtendedFieldURI->PropertyId = "33029";
$request->Restriction->And->IsGreaterThanOrEqualTo->ExtendedFieldURI->PropertyType = "SystemTime";
$request->Restriction->And->IsGreaterThanOrEqualTo->FieldURIOrConstant->Constant->Value = date('c', $start);

$request->Restriction->And->IsLessThanOrEqualTo = new EWSType_IsLessThanOrEqualToType();
$request->Restriction->And->IsLessThanOrEqualTo->ExtendedFieldURI = new EWSType_PathToExtendedFieldType;
$request->Restriction->And->IsLessThanOrEqualTo->ExtendedFieldURI->DistinguishedPropertySetId = "Task";
$request->Restriction->And->IsLessThanOrEqualTo->ExtendedFieldURI->PropertyId = "33029";
$request->Restriction->And->IsLessThanOrEqualTo->ExtendedFieldURI->PropertyType = "SystemTime";
$request->Restriction->And->IsLessThanOrEqualTo->FieldURIOrConstant->Constant->Value = date('c', $end);
```

And the types used:

```
class EWSType_RestrictionType extends EWSType {
/**
 * SearchExpression property
 * 
 * @var EWSType_SearchExpressionType
 */
public $SearchExpression;

/**
 * Constructor
 */
public function __construct() {
    $this->schema = array(
        array(
            'name' => 'SearchExpression',
            'required' => false,
            'type' => 'SearchExpressionType',
        ),
    ); // end $this->schema
} // end function __construct()
} // end class RestrictionType

<?php

class EWSType_AndType extends EWSType {
/**
 * SearchExpression property
 * 
 * @var EWSType_MultipleOperandBooleanExpressionType
 */
public $SearchExpression;

/**
 * Constructor
 */
public function __construct() {
    $this->schema = array(
        array(
            'name' => 'SearchExpression',
            'required' => false,
            'type' => 'MultipleOperandBooleanExpressionType',
        ),          
    ); // end $this->schema
} // end function __construct()
} // end class AndType
class EWSType_IsLessThanOrEqualToType extends EWSType {
/**
 * SearchExpression property
 * 
 * @var EWSType_TwoOperandExpressionType
 */
public $SearchExpression;

/**
 * Constructor
 */
public function __construct() {
    $this->schema = array(
        array(
            'name' => 'SearchExpression',
            'required' => false,
            'type' => 'TwoOperandExpressionType',
        ),
    ); // end $this->schema
} // end function __construct()
} // end class IsLessThanOrEqualToType

class EWSType_IsGreaterThanOrEqualToType extends EWSType {
/**
 * SearchExpression property
 * 
 * @var EWSType_TwoOperandExpressionType
 */
public $SearchExpression;

/**
 * Constructor
 */
public function __construct() {
    $this->schema = array(
        array(
            'name' => 'SearchExpression',
            'required' => false,
            'type' => 'TwoOperandExpressionType',
        ),
    ); // end $this->schema
} // end function __construct()
} // end class IsGreaterThanOrEqualToType
```

Getting emails after a specific date with php-ews (Exchange Web Services)

Solution

Problem