find if entry exists between two dates in two different columns?
0
what is wrong in the code?? I need to allow a new entry only if a record does not exist for the given time period. Like if 1-1-19 to 3-1-19 is there in database new entry for this date range should not happen.
<?php
if (isset($_POST['book'])) {
require 'db2.php';
$name=$_POST['name'];
$mail=$_POST['emial'];
$mob=$_POST['phone'];
$ddr=$_POST['add'];
$d11=$_POST['date'];
$d12=$_POST['date2'];
$selected_val=$_POST['type'];
if (empty($name)||empty($mail)||empty($mob)||empty($ddr)||empty($d11)||empty($d12)||empty($selected_val)) {
header("Location: ./booking.php?error=emptyfield");
exit();
}
elseif (!filter_var($mail, FILTER_VALIDATE_EMAIL)&& !preg_match("/^[a-zA-Z]*$/",$name)) {
header("Location: ./booking.php?error=entervalidnaneoremail");
exit();
}
elseif (!preg_match("/^[0-9]*$/", $mob)) {
header("Location: ./booking.php?error=invalidphone");
}
else {
$sql="SELECT * FROM book WHERE d1>'$d11' OR d2<'$d12'";
$result=mysqli_query($conn,$sql);
$row=mysqli_fetch_row($result);
echo $row;
if ($row>0) {
header("Location: ./booking.php?error=Takendate");
exit();
}
else {
$sql="INSERT INTO book(name, email, no, adr, d1, d2, type) VALUES('$name','$mail','$mob','$ddr','$d11','$d12','$selected_val')" ;
mysqli_query($conn,$sql);
}
}
}
?>php mysql
asked Jan 20 at 9:46
shashikant kantelashashikant kantela
1
add a comment |
0
what is wrong in the code?? I need to allow a new entry only if a record does not exist for the given time period. Like if 1-1-19 to 3-1-19 is there in database new entry for this date range should not happen.
<?php
if (isset($_POST['book'])) {
require 'db2.php';
$name=$_POST['name'];
$mail=$_POST['emial'];
$mob=$_POST['phone'];
$ddr=$_POST['add'];
$d11=$_POST['date'];
$d12=$_POST['date2'];
$selected_val=$_POST['type'];
if (empty($name)||empty($mail)||empty($mob)||empty($ddr)||empty($d11)||empty($d12)||empty($selected_val)) {
header("Location: ./booking.php?error=emptyfield");
exit();
}
elseif (!filter_var($mail, FILTER_VALIDATE_EMAIL)&& !preg_match("/^[a-zA-Z]*$/",$name)) {
header("Location: ./booking.php?error=entervalidnaneoremail");
exit();
}
elseif (!preg_match("/^[0-9]*$/", $mob)) {
header("Location: ./booking.php?error=invalidphone");
}
else {
$sql="SELECT * FROM book WHERE d1>'$d11' OR d2<'$d12'";
$result=mysqli_query($conn,$sql);
$row=mysqli_fetch_row($result);
echo $row;
if ($row>0) {
header("Location: ./booking.php?error=Takendate");
exit();
}
else {
$sql="INSERT INTO book(name, email, no, adr, d1, d2, type) VALUES('$name','$mail','$mob','$ddr','$d11','$d12','$selected_val')" ;
mysqli_query($conn,$sql);
}
}
}
?>php mysql
asked Jan 20 at 9:46
shashikant kantelashashikant kantela
1
Your code is insecure. See about prepared statements
– Strawberry
Jan 20 at 10:00
And presumably you mean '2019-01-03' !
– Strawberry
Jan 20 at 10:02
Also, you're logic is flawed. What if you B inserts the book while user A is checking?
– Strawberry
Jan 20 at 10:20
add a comment |
0
0
0
what is wrong in the code?? I need to allow a new entry only if a record does not exist for the given time period. Like if 1-1-19 to 3-1-19 is there in database new entry for this date range should not happen.
<?php
if (isset($_POST['book'])) {
require 'db2.php';
$name=$_POST['name'];
$mail=$_POST['emial'];
$mob=$_POST['phone'];
$ddr=$_POST['add'];
$d11=$_POST['date'];
$d12=$_POST['date2'];
$selected_val=$_POST['type'];
if (empty($name)||empty($mail)||empty($mob)||empty($ddr)||empty($d11)||empty($d12)||empty($selected_val)) {
header("Location: ./booking.php?error=emptyfield");
exit();
}
elseif (!filter_var($mail, FILTER_VALIDATE_EMAIL)&& !preg_match("/^[a-zA-Z]*$/",$name)) {
header("Location: ./booking.php?error=entervalidnaneoremail");
exit();
}
elseif (!preg_match("/^[0-9]*$/", $mob)) {
header("Location: ./booking.php?error=invalidphone");
}
else {
$sql="SELECT * FROM book WHERE d1>'$d11' OR d2<'$d12'";
$result=mysqli_query($conn,$sql);
$row=mysqli_fetch_row($result);
echo $row;
if ($row>0) {
header("Location: ./booking.php?error=Takendate");
exit();
}
else {
$sql="INSERT INTO book(name, email, no, adr, d1, d2, type) VALUES('$name','$mail','$mob','$ddr','$d11','$d12','$selected_val')" ;
mysqli_query($conn,$sql);
}
}
}
?>php mysql
asked Jan 20 at 9:46
shashikant kantelashashikant kantela
1
what is wrong in the code?? I need to allow a new entry only if a record does not exist for the given time period. Like if 1-1-19 to 3-1-19 is there in database new entry for this date range should not happen.
<?php
if (isset($_POST['book'])) {
require 'db2.php';
$name=$_POST['name'];
$mail=$_POST['emial'];
$mob=$_POST['phone'];
$ddr=$_POST['add'];
$d11=$_POST['date'];
$d12=$_POST['date2'];
$selected_val=$_POST['type'];
if (empty($name)||empty($mail)||empty($mob)||empty($ddr)||empty($d11)||empty($d12)||empty($selected_val)) {
header("Location: ./booking.php?error=emptyfield");
exit();
}
elseif (!filter_var($mail, FILTER_VALIDATE_EMAIL)&& !preg_match("/^[a-zA-Z]*$/",$name)) {
header("Location: ./booking.php?error=entervalidnaneoremail");
exit();
}
elseif (!preg_match("/^[0-9]*$/", $mob)) {
header("Location: ./booking.php?error=invalidphone");
}
else {
$sql="SELECT * FROM book WHERE d1>'$d11' OR d2<'$d12'";
$result=mysqli_query($conn,$sql);
$row=mysqli_fetch_row($result);
echo $row;
if ($row>0) {
header("Location: ./booking.php?error=Takendate");
exit();
}
else {
$sql="INSERT INTO book(name, email, no, adr, d1, d2, type) VALUES('$name','$mail','$mob','$ddr','$d11','$d12','$selected_val')" ;
mysqli_query($conn,$sql);
}
}
}
?><?php
if (isset($_POST['book'])) {
require 'db2.php';
$name=$_POST['name'];
$mail=$_POST['emial'];
$mob=$_POST['phone'];
$ddr=$_POST['add'];
$d11=$_POST['date'];
$d12=$_POST['date2'];
$selected_val=$_POST['type'];
if (empty($name)||empty($mail)||empty($mob)||empty($ddr)||empty($d11)||empty($d12)||empty($selected_val)) {
header("Location: ./booking.php?error=emptyfield");
exit();
}
elseif (!filter_var($mail, FILTER_VALIDATE_EMAIL)&& !preg_match("/^[a-zA-Z]*$/",$name)) {
header("Location: ./booking.php?error=entervalidnaneoremail");
exit();
}
elseif (!preg_match("/^[0-9]*$/", $mob)) {
header("Location: ./booking.php?error=invalidphone");
}
else {
$sql="SELECT * FROM book WHERE d1>'$d11' OR d2<'$d12'";
$result=mysqli_query($conn,$sql);
$row=mysqli_fetch_row($result);
echo $row;
if ($row>0) {
header("Location: ./booking.php?error=Takendate");
exit();
}
else {
$sql="INSERT INTO book(name, email, no, adr, d1, d2, type) VALUES('$name','$mail','$mob','$ddr','$d11','$d12','$selected_val')" ;
mysqli_query($conn,$sql);
}
}
}
?><?php
if (isset($_POST['book'])) {
require 'db2.php';
$name=$_POST['name'];
$mail=$_POST['emial'];
$mob=$_POST['phone'];
$ddr=$_POST['add'];
$d11=$_POST['date'];
$d12=$_POST['date2'];
$selected_val=$_POST['type'];
if (empty($name)||empty($mail)||empty($mob)||empty($ddr)||empty($d11)||empty($d12)||empty($selected_val)) {
header("Location: ./booking.php?error=emptyfield");
exit();
}
elseif (!filter_var($mail, FILTER_VALIDATE_EMAIL)&& !preg_match("/^[a-zA-Z]*$/",$name)) {
header("Location: ./booking.php?error=entervalidnaneoremail");
exit();
}
elseif (!preg_match("/^[0-9]*$/", $mob)) {
header("Location: ./booking.php?error=invalidphone");
}
else {
$sql="SELECT * FROM book WHERE d1>'$d11' OR d2<'$d12'";
$result=mysqli_query($conn,$sql);
$row=mysqli_fetch_row($result);
echo $row;
if ($row>0) {
header("Location: ./booking.php?error=Takendate");
exit();
}
else {
$sql="INSERT INTO book(name, email, no, adr, d1, d2, type) VALUES('$name','$mail','$mob','$ddr','$d11','$d12','$selected_val')" ;
mysqli_query($conn,$sql);
}
}
}
?>php mysql
php mysql
asked Jan 20 at 9:46
shashikant kantelashashikant kantela
1
asked Jan 20 at 9:46
shashikant kantelashashikant kantela
1
asked Jan 20 at 9:46
shashikant kantelashashikant kantela
1
asked Jan 20 at 9:46
shashikant kantelashashikant kantela
1
asked Jan 20 at 9:46
shashikant kantelashashikant kantela
1
1
Your code is insecure. See about prepared statements
– Strawberry
Jan 20 at 10:00
And presumably you mean '2019-01-03' !
– Strawberry
Jan 20 at 10:02
Also, you're logic is flawed. What if you B inserts the book while user A is checking?
– Strawberry
Jan 20 at 10:20
add a comment |
Your code is insecure. See about prepared statements
– Strawberry
Jan 20 at 10:00
And presumably you mean '2019-01-03' !
– Strawberry
Jan 20 at 10:02
Also, you're logic is flawed. What if you B inserts the book while user A is checking?
– Strawberry
Jan 20 at 10:20
Your code is insecure. See about prepared statements
– Strawberry
Jan 20 at 10:00
Your code is insecure. See about prepared statements
– Strawberry
Jan 20 at 10:00
And presumably you mean '2019-01-03' !
– Strawberry
Jan 20 at 10:02
And presumably you mean '2019-01-03' !
– Strawberry
Jan 20 at 10:02
Also, you're logic is flawed. What if you B inserts the book while user A is checking?
– Strawberry
Jan 20 at 10:20
Also, you're logic is flawed. What if you B inserts the book while user A is checking?
– Strawberry
Jan 20 at 10:20
add a comment |
2 Answers
2
active
oldest
votes
0
I think you should use AND instead of OR.
answered Jan 20 at 9:51
shingoshingo
1,9391520
add a comment |
0
First of all, your dates ($d11 and $d12) should be in format yyyy-mm-dd so they meet the standar date format for mysql.
Then you need to change this sentence:
$sql="SELECT * FROM book WHERE d1>'$d11' OR d2<'$d12'";
and use an AND instead of OR like this:
$sql="SELECT * FROM book WHERE d1>'$d11' AND d2<'$d12'";
and last, you should use prepared statements to avoid SQL injection
answered Jan 20 at 10:50
nachonacho
2,79811223
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
0
I think you should use AND instead of OR.
answered Jan 20 at 9:51
shingoshingo
1,9391520
add a comment |
0
I think you should use AND instead of OR.
answered Jan 20 at 9:51
shingoshingo
1,9391520
add a comment |
0
0
0
I think you should use AND instead of OR.
answered Jan 20 at 9:51
shingoshingo
1,9391520
I think you should use AND instead of OR.
answered Jan 20 at 9:51
shingoshingo
1,9391520
answered Jan 20 at 9:51
shingoshingo
1,9391520
answered Jan 20 at 9:51
shingoshingo
1,9391520
answered Jan 20 at 9:51
shingoshingo
1,9391520
1,9391520
add a comment |
add a comment |
0
First of all, your dates ($d11 and $d12) should be in format yyyy-mm-dd so they meet the standar date format for mysql.
Then you need to change this sentence:
$sql="SELECT * FROM book WHERE d1>'$d11' OR d2<'$d12'";
and use an AND instead of OR like this:
$sql="SELECT * FROM book WHERE d1>'$d11' AND d2<'$d12'";
and last, you should use prepared statements to avoid SQL injection
answered Jan 20 at 10:50
nachonacho
2,79811223
add a comment |
0
First of all, your dates ($d11 and $d12) should be in format yyyy-mm-dd so they meet the standar date format for mysql.
Then you need to change this sentence:
$sql="SELECT * FROM book WHERE d1>'$d11' OR d2<'$d12'";
and use an AND instead of OR like this:
$sql="SELECT * FROM book WHERE d1>'$d11' AND d2<'$d12'";
and last, you should use prepared statements to avoid SQL injection
answered Jan 20 at 10:50
nachonacho
2,79811223
add a comment |
0
0
0
First of all, your dates ($d11 and $d12) should be in format yyyy-mm-dd so they meet the standar date format for mysql.
Then you need to change this sentence:
$sql="SELECT * FROM book WHERE d1>'$d11' OR d2<'$d12'";
and use an AND instead of OR like this:
$sql="SELECT * FROM book WHERE d1>'$d11' AND d2<'$d12'";
and last, you should use prepared statements to avoid SQL injection
answered Jan 20 at 10:50
nachonacho
2,79811223
First of all, your dates ($d11 and $d12) should be in format yyyy-mm-dd so they meet the standar date format for mysql.
Then you need to change this sentence:
$sql="SELECT * FROM book WHERE d1>'$d11' OR d2<'$d12'";
and use an AND instead of OR like this:
$sql="SELECT * FROM book WHERE d1>'$d11' AND d2<'$d12'";
and last, you should use prepared statements to avoid SQL injection
answered Jan 20 at 10:50
nachonacho
2,79811223
answered Jan 20 at 10:50
nachonacho
2,79811223
answered Jan 20 at 10:50
nachonacho
2,79811223
answered Jan 20 at 10:50
nachonacho
2,79811223
2,79811223
add a comment |
add a comment |
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Your code is insecure. See about prepared statements
– Strawberry
Jan 20 at 10:00
And presumably you mean '2019-01-03' !
– Strawberry
Jan 20 at 10:02
Also, you're logic is flawed. What if you B inserts the book while user A is checking?
– Strawberry
Jan 20 at 10:20