Gets ExplainMetrics when the explainOptions option is supplied.
If ExplainOptions::setAnalyze is set to false, the query is
planned and not executed, returning only the V1\PlanSummary
instead of the V1\ExecutionStats and result.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-09-04 UTC."],[],[],null,["# Cloud Firestore Client - Class QuerySnapshot (1.53.0)\n\nVersion latestkeyboard_arrow_down\n\n- [1.53.0 (latest)](/php/docs/reference/cloud-firestore/latest/QuerySnapshot)\n- [1.52.0](/php/docs/reference/cloud-firestore/1.52.0/QuerySnapshot)\n- [1.51.0](/php/docs/reference/cloud-firestore/1.51.0/QuerySnapshot)\n- [1.50.0](/php/docs/reference/cloud-firestore/1.50.0/QuerySnapshot)\n- [1.48.1](/php/docs/reference/cloud-firestore/1.48.1/QuerySnapshot)\n- [1.47.3](/php/docs/reference/cloud-firestore/1.47.3/QuerySnapshot)\n- [1.46.0](/php/docs/reference/cloud-firestore/1.46.0/QuerySnapshot)\n- [1.45.2](/php/docs/reference/cloud-firestore/1.45.2/QuerySnapshot)\n- [1.44.1](/php/docs/reference/cloud-firestore/1.44.1/QuerySnapshot)\n- [1.43.3](/php/docs/reference/cloud-firestore/1.43.3/QuerySnapshot)\n- [1.40.0](/php/docs/reference/cloud-firestore/1.40.0/QuerySnapshot)\n- [1.39.0](/php/docs/reference/cloud-firestore/1.39.0/QuerySnapshot)\n- [1.38.0](/php/docs/reference/cloud-firestore/1.38.0/QuerySnapshot)\n- [1.37.7](/php/docs/reference/cloud-firestore/1.37.7/QuerySnapshot)\n- [1.36.1](/php/docs/reference/cloud-firestore/1.36.1/QuerySnapshot)\n- [1.35.0](/php/docs/reference/cloud-firestore/1.35.0/QuerySnapshot)\n- [1.34.0](/php/docs/reference/cloud-firestore/1.34.0/QuerySnapshot)\n- [1.33.0](/php/docs/reference/cloud-firestore/1.33.0/QuerySnapshot)\n- [1.32.0](/php/docs/reference/cloud-firestore/1.32.0/QuerySnapshot)\n- [1.31.0](/php/docs/reference/cloud-firestore/1.31.0/QuerySnapshot)\n- [1.30.0](/php/docs/reference/cloud-firestore/1.30.0/QuerySnapshot)\n- [1.28.0](/php/docs/reference/cloud-firestore/1.28.0/QuerySnapshot)\n- [1.27.3](/php/docs/reference/cloud-firestore/1.27.3/QuerySnapshot) \nReference documentation and code samples for the Cloud Firestore Client class QuerySnapshot.\n\nRepresents the result set of a Cloud Firestore Query.\n\nExample: \n\n use Google\\Cloud\\Firestore\\FirestoreClient;\n\n $firestore = new FirestoreClient();\n $collection = $firestore-\u003ecollection('users');\n $query = $collection-\u003ewhere('age', '\u003e', 18);\n\n $snapshot = $query-\u003edocuments();\n\n // Snapshots can be iterated with foreach:\n foreach ($snapshot as $user) {\n echo $user['name'] . PHP_EOL;\n }\n\nNamespace\n---------\n\nGoogle \\\\ Cloud \\\\ Firestore\n\nMethods\n-------\n\n### __construct\n\n### isEmpty\n\nCheck if the result is empty.\n\nExample: \n\n $empty = $snapshot-\u003eisEmpty();\n\n### size\n\nReturns the size of the result set.\n\nExample: \n\n $size = $snapshot-\u003esize();\n\n### rows\n\nReturn the formatted and decoded rows. If the stream is interrupted,\nattempts will be made on your behalf to resume.\n\nExample: \n\n $rows = $snapshot-\u003erows();\n\n### getExplainMetrics\n\nGets `ExplainMetrics` when the `explainOptions` option is supplied.\n\nIf `ExplainOptions::setAnalyze` is set to `false`, the query is\nplanned and not executed, returning only the [V1\\\\PlanSummary](/php/docs/reference/cloud-firestore/latest/V1.PlanSummary)\ninstead of the [V1\\\\ExecutionStats](/php/docs/reference/cloud-firestore/latest/V1.ExecutionStats) and result.\n\n### getIterator"]]