我正在使用PHP从MYSQL中读取文本字段(DESCRIPTION)并准备一个JSON对象。以JQUERY DataTables Plug-In为例建模。
DESCRIPTION字段包含回车符,我相信这会导致无效的JSON。 JSONLINT.com在第35行产生“语法错误,意外的TINVALID。解析失败”。
http://ageara.com/exp3/server_processing_details_col.php应返回有效的JSON
我正在尝试使用PHP TRIM()函数删除CR,但没有太多运气。
相关的PHP代码如下....
$rResult = mysql_query( $sQuery, $gaSql['link'] ) or die(mysql_error());
$sQuery = "
SELECT FOUND_ROWS()
";
$rResultFilterTotal = mysql_query( $sQuery, $gaSql['link'] ) or die(mysql_error());
$aResultFilterTotal = mysql_fetch_array($rResultFilterTotal);
$iFilteredTotal = $aResultFilterTotal[0];
$sQuery = "
SELECT COUNT(TITLE)
FROM geometa_small
";
$rResultTotal = mysql_query( $sQuery, $gaSql['link'] ) or die(mysql_error());
$aResultTotal = mysql_fetch_array($rResultTotal);
$iTotal = $aResultTotal[0];
/* write the JSON output */
$sOutput = '{';
$sOutput .= '"sEcho": '.intval($_GET['sEcho']).', ';
$sOutput .= '"iTotalRecords": '.$iTotal.', ';
$sOutput .= '"iTotalDisplayRecords": '.$iFilteredTotal.', ';
$sOutput .= '"aaData": [ ';
while ( $aRow = mysql_fetch_array( $rResult ) )
{
$sOutput .= "[";
$sOutput .= '"<img src=\"details_open.png\">",';
$sOutput .= '"'.str_replace('"', '\"', $aRow['TITLE']).'",';
$sOutput .= '"'.str_replace('"', '\"', $aRow['DATA_CUSTODIAN_ORGANIZATION']).'",';
$sOutput .= '"'.str_replace('"', '\"', $aRow['RECORD_TYPE']).'",';
$sOutput .= '"'.str_replace('"', '\"', $aRow['RESOURCE_STATUS']).'",';
$sOutput .= '"'.str_replace('"', '\"', $aRow['RESOURCE_STORAGE_LOCATION']).'",';
$sOutput .= '"'.str_replace('"', '\"', $aRow['UNIQUE_METADATA_URL']).'",';
$sOutput .= '"'.trim(str_replace('"', '\"', $aRow['DESCRIPTION']), "/r").'"';
$sOutput .= "],";
}
$sOutput = substr_replace( $sOutput, "", -1 );
$sOutput .= '] }';
echo $sOutput;
function fnColumnToField( $i )
{
/* Note that column 0 is the details column */
if ( $i == 0 ||$i == 1 )
return "TITLE";
else if ( $i == 2 )
return "DATA_CUSTODIAN_ORGANIZATION";
else if ( $i == 3 )
return "RECORD_TYPE";
else if ( $i == 4 )
return "RESOURCE_STATUS";
else if ( $i == 5 )
return "RESOURCE_STORAGE_LOCATION";
else if ( $i == 6 )
return "UNIQUE_METADATA_URL";
else if ( $i == 7 )
return "DESCRIPTION";
}
&GT;
答案 0 :(得分:0)
TRIM()(PHP和MySQL版本)不会删除所有回车符,只会在输入之前和之后删除空格。你可以用php或MySQL去掉回报。我知道如何在php中做到这一点:
str_replace(array("\r", "\n"), array('', ''), $mysqldata);
希望这会有所帮助。不是100%确定这是否是JSON无效的原因。
顺便说一下,如果你有PHP 5.2,你不需要疯狂编写自己的JSON。您可以使用json_encode()
答案 1 :(得分:0)
Trim会根据手册删除\ r和\ n:
此函数返回一个字符串 空白从一开始就被剥夺了 和结束没有第二个 参数,trim()将剥离这些 字符:
* " " (ASCII 32 (0x20)), an ordinary space. * "\t" (ASCII 9 (0x09)), a tab. * "\n" (ASCII 10 (0x0A)), a new line (line feed). * "\r" (ASCII 13 (0x0D)), a carriage return. * "\0" (ASCII 0 (0x00)), the NUL-byte. * "\x0B" (ASCII 11 (0x0B)), a vertical tab.