📄 hw_edit.php
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<?php header("Content-Type: text/html; charset=UTF8");?><?php putenv("NLS_LANG=AMERICAN_AMERICA.AL32UTF8");?><?php $conn=oci_connect("zhangsan","p06123456","//127.0.0.1/XE"); if(!$conn) { echo "<h2>db connection error.</h2>".var_dump(oci_error()); die(); } if($_REQUEST['hwno']!="") { $HOMEWORK_NO=htmlentities($_REQUEST['hwno']); $DESCRIPTION=htmlentities($_REQUEST['DESCRIPTION']); $sql=""; if($_REQUEST['submit']=="Add") $sql="INSERT INTO homework (HOMEWORK_NO,DESCRIPTION) VALUES($HOMEWORK_NO,'$DESCRIPTION')"; else $sql="UPDATE homework set DESCRIPTION='$DESCRIPTION' where HOMEWORK_NO=$HOMEWORK_NO"; $s=oci_parse($conn,$sql); $result=oci_execute($s,OCI_COMMIT_ON_SUCCESS); if(!$result) { echo "$result.sql:$sql<br>"; echo "error!".var_dump(oci_error()); die(); } header( 'Location: hw.php' ); } $major_selected=0; if(isset($_REQUEST['m']) && $_REQUEST['m']!="" && $_REQUEST['m']!="0") { $major_selected=htmlentities($_REQUEST['m']); } $HOMEWORK_NO=0; $DESCRIPTION="A DESCRIPTION"; if($_REQUEST['action']=="edit") { $sql="SELECT * FROM homework where HOMEWORK_NO=".$_REQUEST['id']; $s=oci_parse($conn,$sql); $result=oci_execute($s,OCI_DEFAULT); if(!$result) { echo $sql; echo "error!".var_dump(oci_error()); die(); } $row=oci_fetch_array($s,OCI_BOTH); $HOMEWORK_NO=$row['HOMEWORK_NO']; $DESCRIPTION=$row['DESCRIPTION']; }else if($_REQUEST['action']=="new") { $sql="SELECT max(HOMEWORK_NO)+1 as NEW_NO FROM homework"; $s=oci_parse($conn,$sql); $result=oci_execute($s,OCI_DEFAULT); if(!$result) { echo $sql; echo "error!".var_dump(oci_error()); die(); } $row=oci_fetch_array($s,OCI_BOTH); $HOMEWORK_NO=$row['NEW_NO']; } oci_close($conn); ?><html><head><title>Teacher Assistant System</title><link href="tas.css" rel="stylesheet" type="text/css"></head><body><center><a href=hw.php><span class=red>[HOMEWORK]</span></a><h1><?if($_REQUEST['action']=="edit") echo "Modify ";else echo "Add "; ?> A Homework</h1><form action=hw_edit.php method=get><table border=0 cellpadding=0 cellspacing=0><tr><td>No:</td><td><input type=text size=30 NAME=hwno <?if($_REQUEST['action']=="edit") echo "readonly"?> value=<?=$HOMEWORK_NO?>></td></tr><tr><td>DESCRIPTION:</td><td> <input type=text size=50 NAME=DESCRIPTION value='<?=$DESCRIPTION?>'></td></tr><tr><td></td><td><input type=submit NAME=submit border=0 value="<?if($_REQUEST['action']=="edit") echo "Update";else echo "Add"; ?>"></td></tr></table></form></center></body></html>⌨️ 快捷键说明
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