PHP与JS的问题,急,在线等。。。
PHP与JS之间怎么嵌套呢?我下面的程序有什么问题吗?
<?php
echo "<script language='javascript'>\n";
echo "choice = greet_form.mobile_address.value;";
echo "for( i = document.greet_form.mobile.length-1; i >= 0; i-- )";
echo "document.greet_form.mobile.options[i] = null;";
$sql = "select fri_mobile from user_address where mobile=\"$reg_mobile\" and groupname="+choice;
$db->sql_query($sql);
$nums = $db->get_query_num();
$j = 0;
while ($result = $db->get_query_result()) {
echo "var opt$j = new Option(\"$result[fri_mobile]\",\"$result[fri_mobile]\")";
echo "for ( var i = 0; i <= $nums-1; i++ ) {";
echo "eval( \"greet_form.mobile.options[i] = opt\" + i );";
echo "if ( i == 0 ) {";
echo "eval( \"greet_form.mobile.options[i].selected = true\" )";
echo "}";
echo "}";
}
echo "</script>";
?>