From b0d62dd23fa26479bcba7b0436daffbb4177baf3 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Bj=C3=B6rn=20Runden?= Date: Mon, 2 Jan 2023 23:33:10 +0100 Subject: [PATCH] noch c,d,err,r,u --- README.md | 5 +- create.php | 116 ++++++++++++++++++++++++++++++++++++ delete.php | 76 ++++++++++++++++++++++++ error.php | 26 ++++++++ read.php | 90 ++++++++++++++++++++++++++++ update.php | 170 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 6 files changed, 482 insertions(+), 1 deletion(-) create mode 100644 create.php create mode 100644 delete.php create mode 100644 error.php create mode 100644 read.php create mode 100644 update.php diff --git a/README.md b/README.md index 39cb140..47a150a 100644 --- a/README.md +++ b/README.md @@ -1,3 +1,6 @@ # phpvoctrain -vocabulary trainer (PHP / Lamp) \ No newline at end of file +vocabulary trainer (PHP / Lamp) + + hier geklaut: + https://www.tutorialrepublic.com/php-tutorial/php-mysql-crud-application.php \ No newline at end of file diff --git a/create.php b/create.php new file mode 100644 index 0000000..1e0f5a3 --- /dev/null +++ b/create.php @@ -0,0 +1,116 @@ +array("regexp"=>"/^[a-zA-Z\säöüÄÖÜ]+$/")))){ + $name_err = "Please enter a valid name."; + } else{ + $name = $input_name; + } + + // Validate address + $input_address = trim($_POST["address"]); + if(empty($input_address)){ + $address_err = "Please enter an address."; + } else{ + $address = $input_address; + } + + // Validate salary + $input_salary = trim($_POST["salary"]); + if(empty($input_salary)){ + $salary_err = "Please enter the salary amount."; + } elseif(!ctype_digit($input_salary)){ + $salary_err = "Please enter a positive integer value."; + } else{ + $salary = $input_salary; + } + + // Check input errors before inserting in database + if(empty($name_err) && empty($address_err) && empty($salary_err)){ + // Prepare an insert statement + $sql = "INSERT INTO employees (name, address, salary) VALUES (?, ?, ?)"; + + if($stmt = mysqli_prepare($link, $sql)){ + // Bind variables to the prepared statement as parameters + mysqli_stmt_bind_param($stmt, "sss", $param_name, $param_address, $param_salary); + + // Set parameters + $param_name = $name; + $param_address = $address; + $param_salary = $salary; + + // Attempt to execute the prepared statement + if(mysqli_stmt_execute($stmt)){ + // Records created successfully. Redirect to landing page + header("location: index.php"); + exit(); + } else{ + echo "Oops! Something went wrong. Please try again later."; + } + } + + // Close statement + mysqli_stmt_close($stmt); + } + + // Close connection + mysqli_close($link); +} +?> + + + + + + Create Record + + + + +
+
+
+
+

Create Record

+

Please fill this form and submit to add employee record to the database.

+
" method="post"> +
+ + + +
+
+ + + +
+
+ + + +
+ + Cancel +
+
+
+
+
+ + \ No newline at end of file diff --git a/delete.php b/delete.php new file mode 100644 index 0000000..54bcb83 --- /dev/null +++ b/delete.php @@ -0,0 +1,76 @@ + + + + + + + Delete Record + + + + +
+
+
+
+

Delete Record

+
" method="post"> +
+ "/> +

Are you sure you want to delete this employee record?

+

+ + No +

+
+
+
+
+
+
+ + \ No newline at end of file diff --git a/error.php b/error.php new file mode 100644 index 0000000..e820e61 --- /dev/null +++ b/error.php @@ -0,0 +1,26 @@ + + + + + Error + + + + +
+
+
+
+

Invalid Request

+
Sorry, you've made an invalid request. Please go back and try again.
+
+
+
+
+ + \ No newline at end of file diff --git a/read.php b/read.php new file mode 100644 index 0000000..943e17e --- /dev/null +++ b/read.php @@ -0,0 +1,90 @@ + + + + + + + View Record + + + + +
+
+
+
+

View Record

+
+ +

+
+
+ +

+
+
+ +

+
+

Back

+
+
+
+
+ + \ No newline at end of file diff --git a/update.php b/update.php new file mode 100644 index 0000000..ee2b148 --- /dev/null +++ b/update.php @@ -0,0 +1,170 @@ +array("regexp"=>"/^[a-zA-Z\s]+$/")))){ + $name_err = "Please enter a valid name."; + } else{ + $name = $input_name; + } + + // Validate address address + $input_address = trim($_POST["address"]); + if(empty($input_address)){ + $address_err = "Please enter an address."; + } else{ + $address = $input_address; + } + + // Validate salary + $input_salary = trim($_POST["salary"]); + if(empty($input_salary)){ + $salary_err = "Please enter the salary amount."; + } elseif(!ctype_digit($input_salary)){ + $salary_err = "Please enter a positive integer value."; + } else{ + $salary = $input_salary; + } + + // Check input errors before inserting in database + if(empty($name_err) && empty($address_err) && empty($salary_err)){ + // Prepare an update statement + $sql = "UPDATE employees SET name=?, address=?, salary=? WHERE id=?"; + + if($stmt = mysqli_prepare($link, $sql)){ + // Bind variables to the prepared statement as parameters + mysqli_stmt_bind_param($stmt, "sssi", $param_name, $param_address, $param_salary, $param_id); + + // Set parameters + $param_name = $name; + $param_address = $address; + $param_salary = $salary; + $param_id = $id; + + // Attempt to execute the prepared statement + if(mysqli_stmt_execute($stmt)){ + // Records updated successfully. Redirect to landing page + header("location: index.php"); + exit(); + } else{ + echo "Oops! Something went wrong. Please try again later."; + } + } + + // Close statement + mysqli_stmt_close($stmt); + } + + // Close connection + mysqli_close($link); +} else{ + // Check existence of id parameter before processing further + if(isset($_GET["id"]) && !empty(trim($_GET["id"]))){ + // Get URL parameter + $id = trim($_GET["id"]); + + // Prepare a select statement + $sql = "SELECT * FROM employees WHERE id = ?"; + if($stmt = mysqli_prepare($link, $sql)){ + // Bind variables to the prepared statement as parameters + mysqli_stmt_bind_param($stmt, "i", $param_id); + + // Set parameters + $param_id = $id; + + // Attempt to execute the prepared statement + if(mysqli_stmt_execute($stmt)){ + $result = mysqli_stmt_get_result($stmt); + + if(mysqli_num_rows($result) == 1){ + /* Fetch result row as an associative array. Since the result set + contains only one row, we don't need to use while loop */ + $row = mysqli_fetch_array($result, MYSQLI_ASSOC); + + // Retrieve individual field value + $name = $row["name"]; + $address = $row["address"]; + $salary = $row["salary"]; + } else{ + // URL doesn't contain valid id. Redirect to error page + header("location: error.php"); + exit(); + } + + } else{ + echo "Oops! Something went wrong. Please try again later."; + } + } + + // Close statement + mysqli_stmt_close($stmt); + + // Close connection + mysqli_close($link); + } else{ + // URL doesn't contain id parameter. Redirect to error page + header("location: error.php"); + exit(); + } +} +?> + + + + + + Update Record + + + + +
+
+
+
+

Update Record

+

Please edit the input values and submit to update the employee record.

+
+
+ + + +
+
+ + + +
+
+ + + +
+ + + Cancel +
+
+
+
+
+ + \ No newline at end of file