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1 <?php
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2 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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3 * Easy set variables
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4 */
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5
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6 /* Array of database columns which should be read and sent back to DataTables. Use a space where
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7 * you want to insert a non-database field (for example a counter or static image)
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8 */
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9 $aColumns = array( 'engine', 'browser', 'platform', 'version', 'grade' );
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10
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11 /* Indexed column (used for fast and accurate table cardinality) */
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12 $sIndexColumn = "id";
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13
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14 /* DB table to use */
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15 $sTable = "ajax";
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16
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17 /* Database connection information */
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18 $gaSql['user'] = "";
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19 $gaSql['password'] = "";
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20 $gaSql['db'] = "";
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21 $gaSql['server'] = "localhost";
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22
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23 /* REMOVE THIS LINE (it just includes my SQL connection user/pass) */
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24 include( $_SERVER['DOCUMENT_ROOT']."/datatables/mysql.php" );
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25
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26
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27 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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28 * If you just want to use the basic configuration for DataTables with PHP server-side, there is
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29 * no need to edit below this line
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30 */
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31
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32 /*
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33 * Local functions
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34 */
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35 function fatal_error ( $sErrorMessage = '' )
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36 {
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37 header( $_SERVER['SERVER_PROTOCOL'] .' 500 Internal Server Error' );
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38 die( $sErrorMessage );
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39 }
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40
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41
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42 /*
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43 * MySQL connection
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44 */
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45 if ( ! $gaSql['link'] = mysql_pconnect( $gaSql['server'], $gaSql['user'], $gaSql['password'] ) )
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46 {
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47 fatal_error( 'Could not open connection to server' );
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48 }
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49
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50 if ( ! mysql_select_db( $gaSql['db'], $gaSql['link'] ) )
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51 {
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52 fatal_error( 'Could not select database ' );
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53 }
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54
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55 /*
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56 * Paging
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57 */
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58 $sLimit = "";
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59 if ( isset( $_GET['iDisplayStart'] ) && $_GET['iDisplayLength'] != '-1' )
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60 {
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61 $sLimit = "LIMIT ".intval( $_GET['iDisplayStart'] ).", ".
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62 intval( $_GET['iDisplayLength'] );
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63 }
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64
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65
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66 /*
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67 * Ordering
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68 */
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69 $sOrder = "";
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70 if ( isset( $_GET['iSortCol_0'] ) )
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71 {
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72 $sOrder = "ORDER BY ";
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73 for ( $i=0 ; $i<intval( $_GET['iSortingCols'] ) ; $i++ )
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74 {
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75 if ( $_GET[ 'bSortable_'.intval($_GET['iSortCol_'.$i]) ] == "true" )
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76 {
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77 $sOrder .= "`".$aColumns[ intval( $_GET['iSortCol_'.$i] ) ]."` ".
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78 ($_GET['sSortDir_'.$i]==='asc' ? 'asc' : 'desc') .", ";
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79 }
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80 }
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81
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82 $sOrder = substr_replace( $sOrder, "", -2 );
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83 if ( $sOrder == "ORDER BY" )
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84 {
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85 $sOrder = "";
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86 }
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87 }
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88
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89
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90 /*
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91 * Filtering
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92 * NOTE this does not match the built-in DataTables filtering which does it
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93 * word by word on any field. It's possible to do here, but concerned about efficiency
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94 * on very large tables, and MySQL's regex functionality is very limited
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95 */
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96 $sWhere = "";
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97 if ( isset($_GET['sSearch']) && $_GET['sSearch'] != "" )
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98 {
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99 $sWhere = "WHERE (";
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100 for ( $i=0 ; $i<count($aColumns) ; $i++ )
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101 {
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102 if ( isset($_GET['bSearchable_'.$i]) && $_GET['bSearchable_'.$i] == "true" )
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103 {
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104 $sWhere .= "`".$aColumns[$i]."` LIKE '%".mysql_real_escape_string( $_GET['sSearch'] )."%' OR ";
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105 }
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106 }
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107 $sWhere = substr_replace( $sWhere, "", -3 );
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108 $sWhere .= ')';
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109 }
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110
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111 /* Individual column filtering */
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112 for ( $i=0 ; $i<count($aColumns) ; $i++ )
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113 {
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114 if ( isset($_GET['bSearchable_'.$i]) && $_GET['bSearchable_'.$i] == "true" && $_GET['sSearch_'.$i] != '' )
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115 {
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116 if ( $sWhere == "" )
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117 {
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118 $sWhere = "WHERE ";
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119 }
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120 else
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121 {
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122 $sWhere .= " AND ";
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123 }
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124 $sWhere .= "`".$aColumns[$i]."` LIKE '%".mysql_real_escape_string($_GET['sSearch_'.$i])."%' ";
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125 }
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126 }
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127
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128
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129 /*
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130 * SQL queries
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131 * Get data to display
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132 */
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133 $sQuery = "
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134 SELECT SQL_CALC_FOUND_ROWS `".str_replace(" , ", " ", implode("`, `", $aColumns))."`
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135 FROM $sTable
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136 $sWhere
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137 $sOrder
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138 $sLimit
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139 ";
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140 $rResult = mysql_query( $sQuery, $gaSql['link'] ) or fatal_error( 'MySQL Error: ' . mysql_errno() );
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141
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142 /* Data set length after filtering */
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143 $sQuery = "
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144 SELECT FOUND_ROWS()
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145 ";
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146 $rResultFilterTotal = mysql_query( $sQuery, $gaSql['link'] ) or fatal_error( 'MySQL Error: ' . mysql_errno() );
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147 $aResultFilterTotal = mysql_fetch_array($rResultFilterTotal);
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148 $iFilteredTotal = $aResultFilterTotal[0];
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149
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150 /* Total data set length */
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151 $sQuery = "
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152 SELECT COUNT(`".$sIndexColumn."`)
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153 FROM $sTable
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154 ";
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155 $rResultTotal = mysql_query( $sQuery, $gaSql['link'] ) or fatal_error( 'MySQL Error: ' . mysql_errno() );
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156 $aResultTotal = mysql_fetch_array($rResultTotal);
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157 $iTotal = $aResultTotal[0];
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158
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159
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160 /*
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161 * Output
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162 */
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163 $output = array(
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164 "sEcho" => intval($_GET['sEcho']),
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165 "iTotalRecords" => $iTotal,
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166 "iTotalDisplayRecords" => $iFilteredTotal,
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167 "aaData" => array()
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168 );
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169
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170 while ( $aRow = mysql_fetch_array( $rResult ) )
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171 {
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172 $row = array();
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173 for ( $i=0 ; $i<count($aColumns) ; $i++ )
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174 {
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175 if ( $aColumns[$i] == "version" )
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176 {
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177 /* Special output formatting for 'version' column */
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178 $row[] = ($aRow[ $aColumns[$i] ]=="0") ? '-' : $aRow[ $aColumns[$i] ];
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179 }
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180 else if ( $aColumns[$i] != ' ' )
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181 {
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182 /* General output */
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183 $row[] = $aRow[ $aColumns[$i] ];
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184 }
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185 }
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186 $output['aaData'][] = $row;
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187 }
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188
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189 echo json_encode( $output );
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190 ?> |
