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| Rev | Author | Line No. | Line |
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| 277 | daniel-mar | 1 | <?php |
| 2 | |||
| 3 | /* |
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| 4 | * OIDplus 2.0 |
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| 5 | * Copyright 2019 Daniel Marschall, ViaThinkSoft |
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| 6 | * |
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| 7 | * Licensed under the Apache License, Version 2.0 (the "License"); |
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| 8 | * you may not use this file except in compliance with the License. |
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| 9 | * You may obtain a copy of the License at |
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| 10 | * |
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| 11 | * http://www.apache.org/licenses/LICENSE-2.0 |
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| 12 | * |
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| 13 | * Unless required by applicable law or agreed to in writing, software |
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| 14 | * distributed under the License is distributed on an "AS IS" BASIS, |
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| 15 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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| 16 | * See the License for the specific language governing permissions and |
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| 17 | * limitations under the License. |
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| 18 | */ |
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| 19 | |||
| 20 | class OIDplusQueryResultMySQLNoNativeDriver extends OIDplusQueryResult { |
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| 21 | // Based on https://www.php.net/manual/de/mysqli-stmt.get-result.php#113398 |
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| 22 | |||
| 23 | protected $stmt; |
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| 24 | protected $nCols; |
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| 25 | protected $no_resultset; |
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| 26 | |||
| 27 | public function __construct($stmt) { |
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| 28 | $metadata = mysqli_stmt_result_metadata($stmt); |
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| 29 | |||
| 30 | $this->no_resultset = is_bool($metadata); |
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| 31 | |||
| 32 | if (!$this->no_resultset) { |
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| 33 | $this->nCols = mysqli_num_fields($metadata); |
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| 34 | $this->stmt = $stmt; |
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| 35 | |||
| 36 | mysqli_free_result($metadata); |
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| 37 | } |
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| 38 | } |
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| 39 | |||
| 40 | public function containsResultSet(): bool { |
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| 41 | return !$this->no_resultset; |
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| 42 | } |
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| 43 | |||
| 44 | public function num_rows(): int { |
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| 45 | if ($this->no_resultset) throw new OIDplusException("The query has returned no result set (i.e. it was not a SELECT query)"); |
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| 46 | |||
| 47 | $this->stmt->store_result(); |
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| 48 | return $this->stmt->num_rows; |
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| 49 | } |
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| 50 | |||
| 51 | public function fetch_array()/*: ?array*/ { |
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| 52 | if ($this->no_resultset) throw new OIDplusException("The query has returned no result set (i.e. it was not a SELECT query)"); |
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| 53 | |||
| 54 | // https://stackoverflow.com/questions/10752815/mysqli-get-result-alternative , modified |
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| 55 | $stmt = $this->stmt; |
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| 56 | $stmt->store_result(); |
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| 57 | $resultkeys = array(); |
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| 58 | $thisName = ""; |
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| 59 | |||
| 60 | if ($stmt->num_rows==0) return null; |
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| 61 | |||
| 62 | for ($i = 0; $i < $stmt->num_rows; $i++) { |
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| 63 | $metadata = $stmt->result_metadata(); |
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| 64 | while ($field = $metadata->fetch_field()) { |
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| 65 | $thisName = $field->name; |
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| 66 | $resultkeys[] = $thisName; |
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| 67 | } |
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| 68 | } |
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| 69 | |||
| 70 | $ret = array(); |
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| 71 | $args = array(); |
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| 72 | for ($i=0; $i<$this->nCols; $i++) { |
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| 73 | $ret[$i] = NULL; |
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| 74 | $theValue = $resultkeys[$i]; |
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| 75 | $ret[$theValue] = NULL; // will be overwritten by mysqli_stmt_bind_result |
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| 76 | $args[] = &$ret[$theValue]; |
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| 77 | } |
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| 78 | if (!mysqli_stmt_bind_result($this->stmt, ...$args)) { |
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| 79 | return null; |
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| 80 | } |
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| 81 | |||
| 82 | // This should advance the "$stmt" cursor. |
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| 83 | if (!mysqli_stmt_fetch($this->stmt)) { |
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| 84 | return null; |
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| 85 | } |
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| 86 | |||
| 87 | // Return the array we built. |
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| 88 | return $ret; |
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| 89 | } |
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| 90 | |||
| 91 | public function fetch_object()/*: ?object*/ { |
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| 92 | if ($this->no_resultset) throw new OIDplusConfigInitializationException("The query has returned no result set (i.e. it was not a SELECT query)"); |
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| 93 | |||
| 94 | $ary = $this->fetch_array(); |
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| 95 | if (!$ary) return null; |
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| 96 | |||
| 97 | $obj = new stdClass; |
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| 98 | foreach ($ary as $name => $val) { |
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| 99 | $obj->$name = $val; |
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| 100 | } |
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| 101 | return $obj; |
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| 102 | } |
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| 103 | } |