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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 /*
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57 * Paging
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58 */
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59 $sLimit = "";
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60 if ( isset( $_GET['iDisplayStart'] ) && $_GET['iDisplayLength'] != '-1' )
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61 {
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62 $sLimit = "LIMIT ".intval( $_GET['iDisplayStart'] ).", ".
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63 intval( $_GET['iDisplayLength'] );
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64 }
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65
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66
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67 /*
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68 * Ordering
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69 */
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70 $sOrder = "";
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71 if ( isset( $_GET['iSortCol_0'] ) )
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72 {
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73 $sOrder = "ORDER BY ";
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74 for ( $i=0 ; $i<intval( $_GET['iSortingCols'] ) ; $i++ )
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75 {
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76 if ( $_GET[ 'bSortable_'.intval($_GET['iSortCol_'.$i]) ] == "true" )
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77 {
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78 $iColumnIndex = array_search( $_GET['mDataProp_'.$_GET['iSortCol_'.$i]], $aColumns );
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79 $sOrder .= "`".$aColumns[ $iColumnIndex ]."` ".
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80 ($_GET['sSortDir_'.$i]==='asc' ? 'asc' : 'desc') .", ";
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81 }
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82 }
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83
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84 $sOrder = substr_replace( $sOrder, "", -2 );
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85 if ( $sOrder == "ORDER BY" )
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86 {
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87 $sOrder = "";
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88 }
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89 }
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90
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91
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92 /*
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93 * Filtering
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94 * NOTE this does not match the built-in DataTables filtering which does it
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95 * word by word on any field. It's possible to do here, but concerned about efficiency
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96 * on very large tables, and MySQL's regex functionality is very limited
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97 */
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98 $sWhere = "";
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99 if ( isset($_GET['sSearch']) && $_GET['sSearch'] != "" )
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100 {
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101 $sWhere = "WHERE (";
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102 for ( $i=0 ; $i<count($aColumns) ; $i++ )
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103 {
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104 if ( isset($_GET['bSearchable_'.$i]) && $_GET['bSearchable_'.$i] == "true" )
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105 {
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106 $sWhere .= $aColumns[$i]." LIKE '%".mysql_real_escape_string( $_GET['sSearch'] )."%' OR ";
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107 }
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108 }
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109 $sWhere = substr_replace( $sWhere, "", -3 );
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110 $sWhere .= ')';
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111 }
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112
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113 /* Individual column filtering */
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114 for ( $i=0 ; $i<count($aColumns) ; $i++ )
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115 {
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116 if ( isset($_GET['bSearchable_'.$i]) && $_GET['bSearchable_'.$i] == "true" && $_GET['sSearch_'.$i] != '' )
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117 {
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118 if ( $sWhere == "" )
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119 {
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120 $sWhere = "WHERE ";
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121 }
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122 else
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123 {
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124 $sWhere .= " AND ";
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125 }
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126 $iColumnIndex = array_search( $_GET['mDataProp_'.$i], $aColumns );
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127 $sWhere .= $aColumns[$iColumnIndex]." LIKE '%".mysql_real_escape_string($_GET['sSearch_'.$i])."%' ";
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128 }
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129 }
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130
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131
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132 /*
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133 * SQL queries
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134 * Get data to display
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135 */
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136 $sQuery = "
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137 SELECT SQL_CALC_FOUND_ROWS ".str_replace(" , ", " ", implode(", ", $aColumns))."
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138 FROM $sTable
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139 $sWhere
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140 $sOrder
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141 $sLimit
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142 ";
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143 $rResult = mysql_query( $sQuery, $gaSql['link'] ) or fatal_error( 'MySQL Error: ' . mysql_errno() );
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144
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145 /* Data set length after filtering */
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146 $sQuery = "
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147 SELECT FOUND_ROWS()
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148 ";
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149 $rResultFilterTotal = mysql_query( $sQuery, $gaSql['link'] ) or fatal_error( 'MySQL Error: ' . mysql_errno() );
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150 $aResultFilterTotal = mysql_fetch_array($rResultFilterTotal);
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151 $iFilteredTotal = $aResultFilterTotal[0];
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152
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153 /* Total data set length */
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154 $sQuery = "
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155 SELECT COUNT(".$sIndexColumn.")
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156 FROM $sTable
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157 ";
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158 $rResultTotal = mysql_query( $sQuery, $gaSql['link'] ) or fatal_error( 'MySQL Error: ' . mysql_errno() );
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159 $aResultTotal = mysql_fetch_array($rResultTotal);
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160 $iTotal = $aResultTotal[0];
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161
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162
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163 /*
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164 * Output
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165 */
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166 $output = array(
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167 "sEcho" => intval($_GET['sEcho']),
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168 "iTotalRecords" => $iTotal,
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169 "iTotalDisplayRecords" => $iFilteredTotal,
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170 "aaData" => array()
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171 );
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172
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173 while ( $aRow = mysql_fetch_array( $rResult ) )
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174 {
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175 $row = array();
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176 for ( $i=0 ; $i<count($aColumns) ; $i++ )
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177 {
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178 if ( $aColumns[$i] == "version" )
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179 {
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180 /* Special output formatting for 'version' column */
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181 $row[ $aColumns[$i] ] = ($aRow[ $aColumns[$i] ]=="0") ? '-' : $aRow[ $aColumns[$i] ];
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182 }
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183 else if ( $aColumns[$i] != ' ' )
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184 {
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185 /* General output */
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186 $row[ $aColumns[$i] ] = $aRow[ $aColumns[$i] ];
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187 }
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188 }
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189 $output['aaData'][] = $row;
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190 }
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191
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192 echo json_encode( $output );
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193 ?> |
