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Online Sandbox for SQL and PHP: Write, Run, Test, and Share SQL Queries and PHP Code
-- Hint: use Ctrl+Enter for SQL autocomplete
create table accountInfo (
email varchar(255),
index (email)
);
insert into accountInfo values ('yes@mail.com');
select * from accountInfo;
SQL Server:
MySQL 8.0
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<?php
function emailExists($conn, $email) {
$stmt = $conn->prepare("SELECT 1 FROM accountInfo WHERE email=?");
$stmt->bind_param('s', $email);
$stmt->execute();
$stmt->store_result();
return $stmt->num_rows;
}
$email = 'no@mail.com';
echo $email . ': ' . emailExists($mysqli, $email) .PHP_EOL;
$email = 'yes@mail.com';
echo $email . ': ' . emailExists($mysqli, $email) .PHP_EOL;
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