📄 handin_edit.php
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<?php header("Content-Type: text/html; charset=UTF8");?><?php putenv("NLS_LANG=AMERICAN_AMERICA.AL32UTF8");?><?php //HOMEWORK_NO to handin to new class or modify the handinment. $hw_no=0; if(isset($_REQUEST['hw']) && $_REQUEST['hw']!="" && $_REQUEST['hw']!="0") { $hw_no=htmlentities($_REQUEST['hw']); }else { echo "No homework selected!"; die(); } $conn=oci_connect("zhangsan","p06123456","//127.0.0.1/XE"); if(!$conn) { echo "<h2>db connection error.</h2>".var_dump(oci_error()); die(); } if($_REQUEST['studentno']!="") {//to add/update an handinment $STUDENT_NO=htmlentities($_REQUEST['studentno']); $HANDIN_DATE=htmlentities($_REQUEST['hidate']); $MARKS=htmlentities($_REQUEST['MARKS']); $COMMENTS=htmlentities($_REQUEST['COMMENTS']); $sql=""; if($_REQUEST['submit']=="Add") $sql="INSERT INTO handin (HOMEWORK_NO,STUDENT_NO,HANDIN_DATE,MARKS,COMMENTS) VALUES(".$hw_no.",".$STUDENT_NO.",'$HANDIN_DATE','$MARKS','$COMMENTS')"; else $sql="UPDATE handin set STUDENT_NO=$STUDENT_NO,HANDIN_DATE='$HANDIN_DATE',MARKS=$MARKS,COMMENTS='$COMMENTS' where (HOMEWORK_NO,STUDENT_NO)=((".$hw_no.",".$_REQUEST['id']."))"; $s=oci_parse($conn,$sql); oci_execute($s,OCI_COMMIT_ON_SUCCESS); header( 'Location: handin.php?hw='.$hw_no ); } $STUDENT_NO=0; $HANDIN_DATE=Date("Y-m-d"); $MARKS=60; $COMMENTS='well done'; if($_REQUEST['action']=="edit") {//to update an handin $sql="SELECT * FROM handin where (HOMEWORK_NO,STUDENT_NO)=((".$hw_no.",".$_REQUEST['id']."))"; $s=oci_parse($conn,$sql); $result=oci_execute($s,OCI_DEFAULT); if(!$result) { echo $sql; echo "error!".var_dump(oci_error()); } $row=oci_fetch_array($s,OCI_BOTH); $STUDENT_NO=$row['STUDENT_NO']; $HANDIN_DATE=$row['HANDIN_DATE']; $MARKS=$row['MARKS']; $COMMENTS=$row['COMMENTS']; }?><html><head><title>Teacher Assistant System</title><link href="tas.css" rel="stylesheet" type="text/css"></head><body><center><a href=handin.php?hw=<?=$hw_no?>><span class=red>[HAND-IN]</span></a><h1><? if($_REQUEST['action']=="edit") echo "Modify ";else echo "Add "; ?> An Hand-In with Homework No.<?=$hw_no?></h1><form action=handin_edit.php method=get><table border=0 cellpadding=0 cellspacing=0><tr><td>Student:</td><td><select NAME='studentno'><?php $sql="SELECT lpad(STUDENT_NO,8,'0') as SID,last_NAME||first_NAME as NAME from students order by STUDENT_NO"; $s=oci_parse($conn,$sql); $result=oci_execute($s,OCI_DEFAULT); while( $row=oci_fetch_array($s,OCI_BOTH) ) { echo "<option value='".$row['SID']."' "; if ( $row['SID']==$STUDENT_NO ) echo "selected"; echo ">"; echo $row['SID']."_".$row['NAME']; echo "</option>"; } oci_close($conn); ?></select></td></tr><tr><td>Handin Date:</td><td> <input type=text size=50 NAME=hidate value='<?=$HANDIN_DATE?>'></td></tr><tr><td>MARKS:</td><td> <input type=text size=50 NAME=MARKS value='<?=$MARKS?>'></td></tr><tr><td>COMMENTS:</td><td> <input type=text size=100 NAME=COMMENTS value='<?=$COMMENTS?>'></td></tr><tr><td></td><td><input type=hidden NAME=hw value='<?=$_REQUEST['hw']?>'><input type=hidden NAME=id value='<?=$_REQUEST['id']?>'><input type=submit NAME=submit border=0 value="<? if($_REQUEST['action']=="edit") echo "Update";else echo "Add"; ?>"></td></tr></table></form></center></body></html>⌨️ 快捷键说明
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