Examples of usage of sugarcrm7-api-wrapper-class at https://github.com/spinegar/sugarcrm7-api-wrapper-class

gistfile1.php

/* Instantiate and authenticate */
$sugar = new \Spinegar\Sugar7Wrapper\Rest();

$sugar->setUrl('https://sugar/rest/v10/')
    ->setUsername('restUser')
    ->setPassword('password')
    ->connect();

/* Retrieve all records in the Cases module */
$sugar->search('Cases');

/* Retrieve all records in the Cases module where the name = 'Case1 Name' or 'Case2 Name' */
$sugar->search('Cases', array(
    'q' => '"Case1 Name" "Case2 Name"'
)); 

/* Retrieve the name field for all records in the Cases module */
$sugar->search('Cases', array(
    'fields' => 'name'
)); 

/* Retrieve a specific record from the Cases module */
$sugar->retrieve('Cases', $record_id);

/* Create a case */
$sugar->create('Cases', array(
    'name' => 'Case Name',
    'status' => 'Assigned'
));

/* Update a case */
$sugar->update('Cases', $record_id, array(
        'status' => 'Closed'
));

/* Favorite a case */
$sugar->favorite('Cases', $record_id);

/* Unfavorite a case */
$sugar->unfavorite('Cases', $record_id);

/* Retrieve cases related to an account */
$sugar->related('Accounts', $record_id, 'cases');

/* Relate a case to an account */
$sugar->relate('Accounts', $record_id, 'cases', $related_record_id);

/*Relate a contact to an opportunity and set relationship data */
$sugar->relate('Opportunities', $record_id, 'contacts', $related_record_id, array(
    'contact_role' => 'Influencer'
))

/* Delete relationship between an account and case */
$sugar->unrelate('Accounts', $record_id, 'cases', $related_record_id);

/* Update relationship data */
$sugar->updateRelationship('Opportunities', $record_id, 'contacts', $related_record_id, array(
    'contact_role' => 'Influencer'
))

/* Retrieve a list of attachments for a case */
$attachments = $sugar->related('Cases', $record_id, 'notes');

foreach($attachments['records'] as $attachment)
{
    $output[] = $sugar->files('Notes', $attachment['id'])
}

return $output;

/* Delete the file associated to the filename field of a note */
$sugar->deleteFile('Notes', $record_id, 'filename')

/* Download  the file associated to the filename field of a note to the server */
$sugar->download('Notes', $record_id, 'filename', '/path/to/destination');