foreach ($response->choices as $result) {

$result->text; // '\n\nThis is a test'

$result->index; // 0

$result->logprobs; // null

$result->finishReason; // 'length' or null

foreach ($response->choices as $result) {

$result->index; // 0

$result->message->role; // 'assistant'

$result->message->content; // '\n\nHello there! How can I assist you today?'

$result->finishReason; // 'stop'

foreach ($response->choices as $result) {

$result->index; // 0

$result->message->role; // 'assistant'

$result->message->content; // null

$result->message->toolCalls[0]->id; // 'call_123'

$result->message->toolCalls[0]->type; // 'function'

$result->message->toolCalls[0]->function->name; // 'get_current_weather'

$result->message->toolCalls[0]->function->arguments; // "{\n \"location\": \"Boston, MA\"\n}"

$result->finishReason; // 'tool_calls'

foreach ($response->choices as $result) {

$result->index; // 0

$result->message->role; // 'assistant'

$result->message->content; // null

$result->message->functionCall->name; // 'get_current_weather'

$result->message->functionCall->arguments; // "{\n \"location\": \"Boston, MA\"\n}"

$result->finishReason; // 'function_call'

foreach ($response->choices as $result) {

$result->text; // 'What day of the week is it?'

$result->index; // 0