Coding for php with mysql
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This document demonstrates how to connect to a MySQL database and perform CRUD (create, read, update, delete) operations using PHP. It first creates a database and table. It then inserts a record, selects all records, updates a record, and deletes a record. Finally, it shows how to create a basic HTML form to collect user input and insert it into the database using PHP.
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<?php
$con=new mysqli("localhost","root","",'trgj');
if($con->connect_error)
echo "failed";
else
echo "Connected";
$sql="SELECT * FROM trgjtable";
$res=$con->query($sql);
if($res->num_rows>0)
{
while($row=$res->fetch_assoc())
{
echo "name:".$row["name"];
}}
?>](https://image.slidesharecdn.com/codingforphpwithmysql-200403050519/85/Coding-for-php-with-mysql-5-320.jpg)
![Updation
<?php
$con=new mysqli("localhost","root","",'trgj');
if($con->connect_error)
echo "failed";
else
echo "Connected";
$up="UPDATE trgjtable set name='gomathi' where name='mani'";
if($con->query($up)===TRUE){
echo "updated";
}else{
echo "not updated";
}
$sql="SELECT * FROM trgjtable";
$res=$con->query($sql);
if($res->num_rows>0)
{
while($row=$res->fetch_assoc())
{
echo "name:".$row["name"];
}}
?>](https://image.slidesharecdn.com/codingforphpwithmysql-200403050519/85/Coding-for-php-with-mysql-6-320.jpg)
![Result.php
<?php
$con=new mysqli("localhost","root","",'trgj');
if($con->connect_error)
echo "failed";
else
echo "Connected";
$sql= "create table person(username varchar(10), email varchar(15))";
if($con->query($sql)===true)
echo "Table Created";
$name=$_POST['username'];
$email=$_POST['email'];
$in="insert into person(username,email) values('$name','$email')";
if($con->query($in)===TRUE)
{
echo "successfully inserted";
}
else{
echo "Not Inserted";
}
header("refresh:2; url=forms.html");
?>](https://image.slidesharecdn.com/codingforphpwithmysql-200403050519/85/Coding-for-php-with-mysql-9-320.jpg)
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CBSE - Grade 8 - Science - Chemistry - Metals and Non Metals - Worksheet
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All the materials around us are made up of elements. These elements can be broadly divided into two major groups:
Metals
Non-Metals
Each group has its own unique physical and chemical properties. Let's understand them one by one.
Physical Properties
1. Appearance
Metals: Shiny (lustrous). Example: gold, silver, copper.
Non-metals: Dull appearance (except iodine, which is shiny).
2. Hardness
Metals: Generally hard. Example: iron.
Non-metals: Usually soft (except diamond, a form of carbon, which is very hard).
3. State
Metals: Mostly solids at room temperature (except mercury, which is a liquid).
Non-metals: Can be solids, liquids, or gases. Example: oxygen (gas), bromine (liquid), sulphur (solid).
4. Malleability
Metals: Can be hammered into thin sheets (malleable).
Non-metals: Not malleable. They break when hammered (brittle).
5. Ductility
Metals: Can be drawn into wires (ductile).
Non-metals: Not ductile.
6. Conductivity
Metals: Good conductors of heat and electricity.
Non-metals: Poor conductors (except graphite, which is a good conductor).
7. Sonorous Nature
Metals: Produce a ringing sound when struck.
Non-metals: Do not produce sound.
Chemical Properties
1. Reaction with Oxygen
Metals react with oxygen to form metal oxides.
These metal oxides are usually basic.
Non-metals react with oxygen to form non-metallic oxides.
These oxides are usually acidic.
2. Reaction with Water
Metals:
Some react vigorously (e.g., sodium).
Some react slowly (e.g., iron).
Some do not react at all (e.g., gold, silver).
Non-metals: Generally do not react with water.
3. Reaction with Acids
Metals react with acids to produce salt and hydrogen gas.
Non-metals: Do not react with acids.
4. Reaction with Bases
Some non-metals react with bases to form salts, but this is rare.
Metals generally do not react with bases directly (except amphoteric metals like aluminum and zinc).
Displacement Reaction
More reactive metals can displace less reactive metals from their salt solutions.
Uses of Metals
Iron: Making machines, tools, and buildings.
Aluminum: Used in aircraft, utensils.
Copper: Electrical wires.
Gold and Silver: Jewelry.
Zinc: Coating iron to prevent rusting (galvanization).
Uses of Non-Metals
Oxygen: Breathing.
Nitrogen: Fertilizers.
Chlorine: Water purification.
Carbon: Fuel (coal), steel-making (coke).
Iodine: Medicines.
Alloys
An alloy is a mixture of metals or a metal with a non-metal.
Alloys have improved properties like strength, resistance to rusting.
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CURRENT CASE COUNT: 817 (As of 05/3/2025)
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• New Mexico: 67 (+1 )(92.4% of the cases are from Eddy County)
• Oklahoma: 16 (+1)
• Kansas: 46 (32% of the cases are from Gray County)
HOSPITALIZATIONS: 97 (+2)
• Texas: 89 (+2) - This is 13.02% of all TX cases.
• New Mexico: 7 - This is 10.6% of all NM cases.
• Kansas: 1 - This is 2.7% of all KS cases.
DEATHS: 3
• Texas: 2 – This is 0.31% of all cases
• New Mexico: 1 – This is 1.54% of all cases
US NATIONAL CASE COUNT: 967 (Confirmed and suspected):
INTERNATIONAL SPREAD (As of 4/2/2025)
• Mexico – 865 (+58)
‒Chihuahua, Mexico: 844 (+58) cases, 3 hospitalizations, 1 fatality
• Canada: 1531 (+270) (This reflects Ontario's Outbreak, which began 11/24)
‒Ontario, Canada – 1243 (+223) cases, 84 hospitalizations.
• Europe: 6,814
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The insect nervous system is a remarkable example of evolutionary adaptation, enabling insects to thrive in diverse environments.
The insect nervous system is a remarkable example of evolutionary adaptation, enabling insects to thrive
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BỘ ĐỀ TUYỂN SINH VÀO LỚP 10 TIẾNG ANH - 25 ĐỀ THI BÁM SÁT CẤU TRÚC MỚI NHẤT, ...
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Coding for php with mysql
- 1. PHP WITH MYSQL USING FORMS
- 2. Database creation <?php $con=new mysqli("localhost","root",""); if($con->connect_error) echo "failed"; else echo "Connected"; $sql="CREATE DATABASE trgj"; if($con->query($sql)===TRUE) echo "success"; else echo "table failed"; ?>
- 3. Table creation <?php $con=new mysqli("localhost","root","",'trgj'); if($con->connect_error) echo "failed"; else echo "Connected"; $sql="CREATE TABLE trgjtable(name varchar(10) not null)"; if($con->query($sql)===TRUE) echo "success"; else echo "table failed"; ?>
- 4. Insertion <?php $con=new mysqli("localhost","root","",'trgj'); if($con->connect_error) echo "failed"; else echo "Connected"; $sql="INSERT INTO trgjtable values('mani')"; if($con->query($sql)===TRUE) echo "success"; else echo "table failed"; ?>
- 5. Selection <?php $con=new mysqli("localhost","root","",'trgj'); if($con->connect_error) echo "failed"; else echo "Connected"; $sql="SELECT * FROM trgjtable"; $res=$con->query($sql); if($res->num_rows>0) { while($row=$res->fetch_assoc()) { echo "name:".$row["name"]; }} ?>
- 6. Updation <?php $con=new mysqli("localhost","root","",'trgj'); if($con->connect_error) echo "failed"; else echo "Connected"; $up="UPDATE trgjtable set name='gomathi' where name='mani'"; if($con->query($up)===TRUE){ echo "updated"; }else{ echo "not updated"; } $sql="SELECT * FROM trgjtable"; $res=$con->query($sql); if($res->num_rows>0) { while($row=$res->fetch_assoc()) { echo "name:".$row["name"]; }} ?>
- 7. Deletion <?php $con=new mysqli("localhost","root","",'trgj'); if($con->connect_error) echo "failed"; else echo "Connected"; $up="delete from trgjtable where name='gomathi'"; if($con->query($up)===TRUE) { echo "deleted"; }else{ echo "not deleted"; }
- 8. PHP with MySQL using Form Forms.html <html > <head> <title>Untitled Document</title> </head> <body> <form action="result.php", method="post"> Name: <input type="text" name="username" /> <br /> Email: <input type="text" name="email" /> <br /> <input type="submit" value="insert" /> </form> </body> </html>
- 9. Result.php <?php $con=new mysqli("localhost","root","",'trgj'); if($con->connect_error) echo "failed"; else echo "Connected"; $sql= "create table person(username varchar(10), email varchar(15))"; if($con->query($sql)===true) echo "Table Created"; $name=$_POST['username']; $email=$_POST['email']; $in="insert into person(username,email) values('$name','$email')"; if($con->query($in)===TRUE) { echo "successfully inserted"; } else{ echo "Not Inserted"; } header("refresh:2; url=forms.html"); ?>
- 10. THANK YOU