I'm trying to take the data I have from mySQL database and have it replace a certain string in a .txt file. I feel like I'm close but the string I want to replace is only getting replaced with a blank space.
<?php
$servername = "localhost";
$username = "rob1289";
$password = "databasetest";
$dbname = "RobertCornell2";
// Create connection
$conn = mysqli_connect($servername, $username, $password, $dbname);
// Check connection
if (!$conn) {
die("Connection failed: " . mysqli_connect_error());
}
$sql = "SELECT * FROM name ORDER BY id DESC LIMIT 1";
$result = mysqli_query($conn, $sql);
if (mysqli_num_rows($result) > 0) {
// output data of each row
while($row = mysqli_fetch_assoc($result)) {
//"" . $row["first"]. "<br>";
$fname_from_db = $row["first"];
$mname_from_db = $row["middle"];
//echo $row["id"];
}
} else {
echo "0 results";
echo "<br/>Error: " . mysqli_error($conn);
}
$myFile = "freewill.doc";
$fh = fopen($myFile, 'a') or die("can't open file");
$fname_from_db = $row["first"];
$mname_from_db = $row["middle"];
$placeholders = array('fin', 'min');
$namevals = array($fname_from_db);
$path_to_file = 'freewill.doc';
$file_contents = file_get_contents($path_to_file);
$file_contents = str_replace($placeholders,$namevals,$file_contents);
file_put_contents($path_to_file,$file_contents);
fclose($fh);
mysqli_close($conn);
?>
Could it be because $namevals (replace) has one element and $placeholders (search) has two?
From the PHP doc:
If replace has fewer values than search, then an empty string is used for the rest of replacement values.
Why after exporting an excel it does have space.I want to start in 1 the data I already clear the spaces on my codes but nothing happen. Thanks for helping me
<?php
function db_connect(){
$servername = "localhost";
$username = "root";
$password = "";
$dbname = "sti_lms";
// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
return $conn;
}
?>
<?php
/* File name : download_data_in_excel.php */
include('dbcon.php'); // include database connection file
$filename ="Books.xls";
header('Content-type: application/ms-excel');
header('Content-Disposition: attachment;filename='.$filename);
$sql = "SELECT * FROM book";
$conn = db_connect();
if($conn){
$result = $conn->query($sql);
echo "Accession\tCall_Num\tAuthor\tBook_Title\tCatalog\tbookcopies\tpublishername\tcopyrightyear\n"; // prints header line with field names
if ($result->num_rows > 0) {// output data of each row
while($row = $result->fetch_assoc()) {
echo $row['acc_id']."\t".$row['callnum']."\t".$row['author']."\t". $row['book_title']."\t".$row['catalog']."\t".$row['book_copies']."\t".$row['publisher_name']."\t".$row['copyright_year']."\n";// prints each record with five fields in a row
}
}
}
The code I am working on queries a database through php and then placed the results into an array called CS. This array is then encoded so it can work with javascript. It is then supposed to edit the output so there is a newline after every row. The latter is where I have the problem. I get implode: invalid arguments passed every time regardless of how I edit the implode function.
Here is the code:
<?php
$servername = "*****";
$username = "****"; --> edited for privacy.
$password = "*******";
$database = "********";
// Create connection
$conn = new mysqli($servername, $username, $password, $database);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
echo "Connected successfully";
// sql statement for tables and naming array to hold it in
$sql = "SELECT COURSE_ID FROM cs";
$result = $conn->query($sql);
$CS = array();
if ($result->num_rows > 0) {
// fill array with results
while($row = $result->fetch_assoc()) {
array_push($CS, $row);
}
} else {
echo "0 Results";
}
// encodes php array so it can be used in javascript
$json_array = json_encode($CS);
$conn->close();
// fills Computer_Science.js with the contents of the json_array and adds new lines in between
$json_array_lines = implode($json_array, "/n"); --> this line
$fp = fopen('..\js\DegreePlans\Computer_Science.js', 'w');
fwrite($fp, print_r($json_array_lines, TRUE));
fclose($fp);
?>
I'm at a loss on how to fix the error. Any help given will be appreciated.
I fixed it!
<?php
$servername = "*****";
$username = "****"; --> edited for privacy.
$password = "*******";
$database = "********";
// Create connection
$conn = new mysqli($servername, $username, $password, $database);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
echo "Connected successfully";
// sql statement for tables and naming array to hold it in
$sql = "SELECT COURSE_ID FROM cs";
$result = $conn->query($sql);
$CS = array();
if ($result->num_rows > 0) {
// fill array with results
while($row = $result->fetch_assoc()) {
array_push($CS, $row);
}
} else {
echo "0 Results";
}
$conn->close();
//encode the array so it can be used in javascript and use regular expressions to format it.
$json_string = json_encode($CS);
$re = "/.,/";
$subst = "},\r\n"; --> right here!
$json_string = preg_replace($re, $subst, $json_string);
$fp = fopen('..\js\DegreePlans\Computer_Science.js', 'w');
fwrite($fp, print_r($json_string, TRUE));
fclose($fp);
?>
I have two MySQL connections for the same database in the one .php file.
Second connection is base on the result of First one.
How can I combine two connection into one ? Please help & teach me how to modify it ?
First connection:
<?php
header('Content-Type: text/html; charset=utf-8');
$servername = "localhost";
$username = "abcabc";
$password = "12341234";
$dbname = "abc1234";
// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
$conn->set_charset("utf8");
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
// Logic data
$previous_page = ($_GET['crno'] - 1);
$next_page = ($_GET['crno'] + 1);
// select data
$sql = 'SELECT * FROM ComData WHERE com_no = '. $_GET['crno'];
$result = $conn->query($sql);
if ($result->num_rows > 0) {
// output data of each row
while($row = $result->fetch_assoc()) {
$pageTitle = $row['com_eng_name'] . $row['com_chi_name'];
$com_no = $row['com_no'];
$br_no = $row['br_no'];
$com_eng_name = $row['com_eng_name'];
$com_chi_name = $row['com_chi_name'];
$com_type = $row['com_type'];
$date_of_incorp = $row['date_of_incorp'];
$active_status = $row['active_status'];
$date_commenced_dormancy = $row['date_commenced_dormancy'];
$remarks = $row['remarks'];
$date_of_dissolution = $row['date_of_dissolution'];
$register_charges = $row['register_charges'];
$name_history = $row['name_history'];
$phone = $row['phone'];
$email = $row['email'];
$address = $row['address'];
$website = $row['website'];
$background = $row['background'];
$update_time = $row['update_time'];
}
} else {
echo "No Results";
}
$conn->close();
?>
Second connection:
<?php
header('Content-Type: text/html; charset=utf-8');
$servername = "localhost";
$username = "abcabc";
$password = "12341234";
$dbname = "abc1234";
// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
$conn->set_charset("utf8");
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
// select data for similar search
$string = "$com_eng_name";
$words = implode(' ', array_slice(explode(' ', $string ), 0, 2));
$sql = "SELECT * FROM ComData
WHERE com_eng_name REGEXP '$words'
ORDER BY com_no
DESC
LIMIT 20";
$result = $conn->query($sql);
if ($result->num_rows > 0) {
echo "<table><tr><th>CR No.</th><th>Company Name</th><th>Active Status</th></tr>";
// output data of each row
while($row = $result->fetch_assoc()) {
echo "<tr><td>".$row["com_no"]."</td><td><a href='search.php?crno=".$row["com_no"]."' >".$row["com_eng_name"]." ".$row["com_chi_name"]."</a></td><td>".$row["active_status"]."</td></tr>";
}
echo "</table>";
} else {
echo "0 results";
}
$conn->close();
?>
If those 2 pieces of code both exist in the same physical file then as the variable holding your connection in both cases is $conn you can just throw away the second attempt at making a connection to the database.
So just remove of comment out this code from the piece of code you called Second Connection i.e. this bit
$servername = "localhost";
$username = "abcabc";
$password = "12341234";
$dbname = "abc1234";
// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
$conn->set_charset("utf8");
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
Then remove this line
$conn->close();
from the piece of code you called First Connetion so you do not close the connection before the second piece of code runs.
However if in fact those 2 pieces of code are in seperate .php files. they have to stays the way they are.
It's not clear either if your two connection are in the same page or not, and if your two queries are execute sequentially or alternately.
Anyway, if the queries are on the same page or if you want put it in same page, sure you can use one only connection.
Start your script in this way:
header('Content-Type: text/html; charset=utf-8');
$servername = "localhost";
$username = "abcabc";
$password = "12341234";
$dbname = "abc1234";
// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
$conn->set_charset("utf8");
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
then, if you have to performs both queries, continue in this way:
// Logic data
$previous_page = ($_GET['crno'] - 1);
$next_page = ($_GET['crno'] + 1);
// select data
$sql = 'SELECT * FROM ComData WHERE com_no = '. $_GET['crno'];
$result = $conn->query($sql);
if ($result->num_rows > 0) {
(...)
} else {
echo "No Results";
}
// select data for similar search
$string = "$com_eng_name";
$words = implode(' ', array_slice(explode(' ', $string ), 0, 2));
(...)
$conn->close();
Otherwise, if the queries are executed only on condition, after connection check continue in this way:
if( /* Your Condition Here */ )
{
// Logic data
$previous_page = ($_GET['crno'] - 1);
(...)
}
else
{
// select data for similar search
$string = "$com_eng_name";
(...)
}
If you want use connection in any different file, you can create a file dbconnect.php with this content:
$servername = "localhost";
$username = "abcabc";
$password = "12341234";
$dbname = "abc1234";
// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
$conn->set_charset("utf8");
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
Then, in each file with db query, include it in this way:
header('Content-Type: text/html; charset=utf-8');
include( 'dbconnect.php' );
// Logic data
$previous_page = ($_GET['crno'] - 1);
(...)
header('Content-Type: text/html; charset=utf-8');
include( 'dbconnect.php' );
// select data for similar search
$string = "$com_eng_name";
(...)
etc...
Please note that, depending on 'dbconnect.php' file location, you can have to change include( 'dbconnect.php' ) with include( '/Full/Or/Relative/Path/dbconnect.php' ).
I'm trying to write a cron job that would run a php script which would insert data from flat (text) file with fixed columns.
My file 'data.txt' looks something like that:
first_column second_column third_column
Eg. first column has width of 30 characters + 1 space for separation from next column, second 20 characters + 1 space for separation, third 15 (including whitespaces). My table 'TEST' has 3 columns: first, second and third.
Question is, how to first trim column data and then insert each row into the table?
<?php
// initial database stuff
$host = 'localhost';
$user = 'username';
$pass = 'password';
$db = 'database';
$connection = mysql_connect($host, $user, $pass) or die ("Unable to connect!");
mysql_select_db($db) or die ("Unable to select database!");
$file = file('/home/user/files/data.txt'); # read file into array
$count = count($file);
if($count > 0) # file is not empty
{
$query = "INSERT into TEST(first,second,third) values";
$i = 1;
foreach($file as $row)
{
$query .= "('TRIM(SUBSTR($row,1,30))','TRIM(SUBSTR($row,32,20))','TRIM(SUBSTR($row,34,49))')";
$query .= $i < $count ? ',':'';
$i++;
}
mysql_query($query) or die(mysql_error());
}
echo "File data successfully imported to database!!";
?>
And here is how it might look like:
<?php
// initial database stuff
$host = 'localhost';
$user = 'username';
$pass = 'password';
$db = 'database';
$connection = mysql_connect($host, $user, $pass) or die ("Unable to connect!");
mysql_select_db($db) or die ("Unable to select database!");
$file = file('/home/user/files/data.txt'); # read file into array
$count = count($file);
// Edited to add loop back in... Silly me.
if($count > 0) # file is not empty
{
foreach ($file as $row){
$first=trim(substr($row,0,30));
$second=trim(substr($row,31,20));
$third=trim(substr($row,33,49));
$query = "INSERT into TEST(first,second,third) values".
"($first,$second,$third)";
mysql_query($query) or die(mysql_error());
}
}
echo "File data successfully imported to database!!";
?>
Consider using PDO and prepared statement, to make it even cleaner ( and safer ).
Try this
<?php
// initial database stuff
$host = 'localhost';
$user = 'username';
$pass = 'password';
$db = 'database';
$connection = mysql_connect($host, $user, $pass) or die ("Unable to connect!");
mysql_select_db($db) or die ("Unable to select database!");
$file = file('/home/user/files/data.txt'); # read file into array
$count = count($file);
if($count > 0) # file is not empty
{
foreach($file as $key => $row)
{
if( $key == 0 ){
$col_1 = str_replace( " ", "" , trim(substr($row,1,30));
$col_2 = str_replace( " ", "" , trim(substr($row,32,20));
$col_3 = str_replace( " ", "" , trim(substr($row,34,49));
$query = "INSERT into TEST(col_1,col_2,col_3) values";
}
else {
$query .= "'TRIM(SUBSTR($row,1,30))','TRIM(SUBSTR($row,32,20))','TRIM(SUBSTR($row,34,49))')";
$query .= $key < $count ? ',':'';
}
}
mysql_query($query) or die(mysql_error());
}
echo "File data successfully imported to database!!";
?>
At the end I ended up using PDO as suggested.
It works fine with strings with commas in the middle, and it skips empty rows.
<?php
// configuration
$dbtype = 'sqlite';
$dbhost = 'localhost';
$dbuser = 'user_for_db';
$dbpass = 'pass_for_db';
$dbname = 'name_of_db';
// database connection
$conn = new PDO("mysql:host=$dbhost;dbname=$dbname;charset=utf8",$dbuser,$dbpass); //charset optional
// open data file
$handle = fopen('/home/user/data/file.txt', 'r');
if ($handle)
{
while (($buffer = fgets($handle, 4096)) !== false)
{
// new data
$first =trim(substr($buffer,0,8));
$second =trim(substr($buffer,9,10));
$third =trim(substr($buffer,20,6));
$fourth =trim(substr($buffer,27,100));
$fifth =str_replace(" , ", ", ", trim(substr($buffer,128,113)));
$sixth =trim(substr($buffer,240,30));
// query
$sql = "INSERT INTO table(column_1,column_2,column_3,column_4,column_5,column_6) VALUES (:first,:second,:third,:fourth,:fifth,:sixth)";
$q = $conn->prepare($sql);
$q->execute(array( ':first' =>$first,
':second' =>$second,
':third' =>$third,
':fourth' =>$fourth,
':fifth' =>$fifth,
':sixth' =>$sixth ));
}
if (!feof($handle))
{
echo "Error: unexpected fgets() fail\n";
}
fclose($handle);
echo "File data successfully imported to database!";
}
?>