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Initialize data samples to empty arrays #91

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Initialize data samples to empty arrays #91

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5 changes: 4 additions & 1 deletion src/Prometheus/Storage/APC.php
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Original file line number Diff line number Diff line change
Expand Up @@ -155,6 +155,7 @@ private function collectCounters()
'help' => $metaData['help'],
'type' => $metaData['type'],
'labelNames' => $metaData['labelNames'],
'samples' => array(),
);
foreach (new \APCUIterator('/^prom:counter:' . $metaData['name'] . ':.*:value/') as $value) {
$parts = explode(':', $value['key']);
Expand Down Expand Up @@ -185,6 +186,7 @@ private function collectGauges()
'help' => $metaData['help'],
'type' => $metaData['type'],
'labelNames' => $metaData['labelNames'],
'samples' => array(),
);
foreach (new \APCUIterator('/^prom:gauge:' . $metaData['name'] . ':.*:value/') as $value) {
$parts = explode(':', $value['key']);
Expand Down Expand Up @@ -216,7 +218,8 @@ private function collectHistograms()
'help' => $metaData['help'],
'type' => $metaData['type'],
'labelNames' => $metaData['labelNames'],
'buckets' => $metaData['buckets']
'buckets' => $metaData['buckets'],
'samples' => array(),
);

// Add the Inf bucket so we can compute it later on
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4 changes: 3 additions & 1 deletion src/Prometheus/Storage/InMemory.php
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Expand Up @@ -41,7 +41,8 @@ private function collectHistograms()
'help' => $metaData['help'],
'type' => $metaData['type'],
'labelNames' => $metaData['labelNames'],
'buckets' => $metaData['buckets']
'buckets' => $metaData['buckets'],
'samples' => array(),
];

// Add the Inf bucket so we can compute it later on
Expand Down Expand Up @@ -114,6 +115,7 @@ private function internalCollect(array $metrics)
'help' => $metaData['help'],
'type' => $metaData['type'],
'labelNames' => $metaData['labelNames'],
'samples' => array(),
];
foreach ($metric['samples'] as $key => $value) {
$parts = explode(':', $key);
Expand Down