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<?php $data = [ ['model_num' => 'ABC', 'revision' => 'AA', 'testRecipeID' => 85, 'value' => 31.25, 'treatment' => 'Pressure'], ['model_num' => 'ABC', 'revision' => 'AA', 'testRecipeID' => 85, 'value' => 31.25, 'treatment' => 'Gas'], ['model_num' => 'ABC', 'revision' => 'AA', 'testRecipeID' => 85, 'value' => 33.12, 'treatment' => 'Temp'], ['model_num' => 'ABC', 'revision' => 'AA', 'testRecipeID' => 85, 'value' => 25.87, 'treatment' => 'Current'], ['model_num' => 'ABC', 'revision' => 'AB', 'testRecipeID' => 86, 'value' => 26.63, 'treatment' => 'Pressure'], ['model_num' => 'ABC', 'revision' => 'AB', 'testRecipeID' => 86, 'value' => 26.0, 'treatment' => 'Gas'], ['model_num' => 'ABC', 'revision' => 'AB', 'testRecipeID' => 86, 'value' => 23.75, 'treatment' => 'Temp'] ]; $result = []; foreach ($data as $row) { $compositeKey = "{$row['model_num']}-{$row['revision']}-{$row['testRecipeID']}"; $result[$compositeKey] ??= [ 'model_num' => $row['model_num'], 'revision' => $row['revision'], 'testRecipeID' => $row['testRecipeID'] ]; $result[$compositeKey][$row['treatment']] = $row['value']; } var_export(array_values($result));
Output for 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.27, 8.4.1 - 8.4.14
array ( 0 => array ( 'model_num' => 'ABC', 'revision' => 'AA', 'testRecipeID' => 85, 'Pressure' => 31.25, 'Gas' => 31.25, 'Temp' => 33.12, 'Current' => 25.87, ), 1 => array ( 'model_num' => 'ABC', 'revision' => 'AB', 'testRecipeID' => 86, 'Pressure' => 26.63, 'Gas' => 26.0, 'Temp' => 23.75, ), )
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33
Parse error: syntax error, unexpected '=' in /in/2PPl6 on line 15
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Parse error: syntax error, unexpected '?' in /in/2PPl6 on line 15
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/2PPl6 on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/2PPl6 on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/2PPl6 on line 3
Process exited with code 255.

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