body { font-family: monospace; background: #000; color: #0f0; padding: 20px; }
h2, h3 { color: #0ff; }
pre { background: #111; padding: 15px; border-left: 3px solid #0f0; overflow-x: auto; }
.error { color: #f00; }
.success { color: #0f0; }
.warning { color: #ff0; }
img { background: #fff; padding: 10px; }
";
echo "🔍 Gemini API Diagnostic Tool
";
// Test 1: Check API key
echo "Test 1: API Key Check
";
$apiKey = GEMINI_API_KEY;
if (empty($apiKey)) {
echo "❌ No API key configured!
";
exit;
} else {
echo "✅ API Key: " . substr($apiKey, 0, 10) . "..." . substr($apiKey, -6) . "
";
}
// Test 2: Try to list available models
echo "Test 2: Check Available Models
";
$listUrl = 'https://generativelanguage.googleapis.com/v1beta/models';
$ch = curl_init($listUrl . '?key=' . $apiKey);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$modelsResponse = curl_exec($ch);
$modelsData = json_decode($modelsResponse, true);
curl_close($ch);
if (isset($modelsData['models'])) {
echo "✅ API connection successful!
";
echo "Available models with IMAGE generation:
";
foreach ($modelsData['models'] as $model) {
if (isset($model['supportedGenerationMethods']) &&
in_array('generateContent', $model['supportedGenerationMethods'])) {
$modelName = $model['name'];
$displayName = $model['displayName'] ?? $modelName;
// Check if model supports image generation
if (stripos($modelName, 'imagen') !== false ||
stripos($displayName, 'image') !== false ||
stripos($modelName, 'gemini') !== false) {
echo "- $modelName - $displayName
";
}
}
}
echo "
";
} else {
echo "❌ Could not fetch models. Response:
";
echo "" . json_encode($modelsData, JSON_PRETTY_PRINT) . "
";
}
// Test 3: Try the image generation with the current model
echo "Test 3: Image Generation Test
";
$model = 'gemini-3-pro-image-preview';
$url = "https://generativelanguage.googleapis.com/v1beta/models/{$model}:generateContent";
$payload = [
'contents' => [
[
'parts' => [
['text' => 'A simple red circle on white background']
]
]
],
'generationConfig' => [
'responseModalities' => ['IMAGE'],
'imageConfig' => [
'aspectRatio' => '1:1',
'imageSize' => '1K'
]
]
];
echo "Model: $model
";
echo "URL: $url
";
echo "Request Payload (click to expand)
";
echo "" . json_encode($payload, JSON_PRETTY_PRINT) . "
";
echo "⏳ Sending request...
";
$response = curl_exec($ch);
$httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
$curlError = curl_error($ch);
curl_close($ch);
echo "HTTP Status Code: ";
if ($httpCode == 200) {
echo "$httpCode ✅
";
} else {
echo "$httpCode ❌";
}
if ($curlError) {
echo "cURL Error: $curlError
";
}
$responseData = json_decode($response, true);
echo "Full Response (click to expand)
";
echo "" . json_encode($responseData, JSON_PRETTY_PRINT) . "
";
echo "❌ API Error Details:
";
echo "" . json_encode($responseData['error'], JSON_PRETTY_PRINT) . "
";
if (isset($responseData['error']['message'])) {
$errorMsg = $responseData['error']['message'];
echo "Error Message: $errorMsg
";
// Provide helpful suggestions
if (stripos($errorMsg, 'not found') !== false || stripos($errorMsg, 'models/') !== false) {
echo "💡 Suggestion: The model name might be incorrect or deprecated.
";
} elseif (stripos($errorMsg, 'quota') !== false || stripos($errorMsg, 'limit') !== false) {
echo "💡 Suggestion: You may have exceeded your API quota.
";
} elseif (stripos($errorMsg, 'internal') !== false) {
echo "💡 Suggestion: This might be a temporary API issue or the model is having problems.
";
}
}
}
// Check for image in response
if (isset($responseData['candidates'][0]['content']['parts'][0]['inlineData']['data'])) {
echo "✅ SUCCESS! Image Generated!
";
$imageData = $responseData['candidates'][0]['content']['parts'][0]['inlineData']['data'];
$mimeType = $responseData['candidates'][0]['content']['parts'][0]['inlineData']['mimeType'];
echo "MIME Type: $mimeType
";
echo "Data length: " . strlen($imageData) . " characters
";
echo "Generated Image:
";
echo "
";
} else {
echo "❌ No Image Data Found
";
}
echo "
Debug completed at " . date('Y-m-d H:i:s') . "
";
?>