- Sql less than or equal to in php
- PHP Operators
- PHP Operators
- PHP Arithmetic Operators
- PHP Assignment Operators
- PHP Comparison Operators
- PHP Increment / Decrement Operators
- PHP Logical Operators
- PHP String Operators
- PHP Array Operators
- PHP Conditional Assignment Operators
- PHP Exercises
- Comparison Operators — PHP Beginner Tutorial
- Use of greater than or equals(>=) and lesser than or equals(<=) in SQL SELECT statements and PDO
- PHP Select Value in MySQL Using Greater Than and Less Than
Sql less than or equal to in php
PHP divides the operators in the following groups: Arithmetic operators Assignment operators Comparison operators Increment/Decrement operators Logical operators String operators Array operators Conditional assignment operators PHP Arithmetic Operators The PHP arithmetic operators are used with numeric values to perform common arithmetical operations, such as addition, subtraction, multiplication etc. Description Show it x = y x = y The left operand gets set to the value of the expression on the right Try it » x += y x = x + y Addition Try it » x -=
PHP Operators
PHP Operators
Operators are used to perform operations on variables and values.
PHP divides the operators in the following groups:
- Arithmetic operators
- Assignment operators
- Comparison operators
- Increment/Decrement operators
- Logical operators
- String operators
- Array operators
- Conditional assignment operators
PHP Arithmetic Operators
The PHP arithmetic operators are used with numeric values to perform common arithmetical operations, such as addition, subtraction, multiplication etc.
| Operator | Name | Example | Result | Show it |
|---|---|---|---|---|
| + | Addition | $x + $y | Sum of $x and $y | Try it » |
| — | Subtraction | $x — $y | Difference of $x and $y | Try it » |
| * | Multiplication | $x * $y | Product of $x and $y | Try it » |
| / | Division | $x / $y | Quotient of $x and $y | Try it » |
| % | Modulus | $x % $y | Remainder of $x divided by $y | Try it » |
| ** | Exponentiation | $x ** $y | Result of raising $x to the $y’th power | Try it » |
PHP Assignment Operators
The PHP assignment operators are used with numeric values to write a value to a variable.
The basic assignment operator in php is «=». It means that the left operand gets set to the value of the assignment expression on the right.
| Assignment | Same as. | Description | Show it |
|---|---|---|---|
| x = y | x = y | The left operand gets set to the value of the expression on the right | Try it » |
| x += y | x = x + y | Addition | Try it » |
| x -= y | x = x — y | Subtraction | Try it » |
| x *= y | x = x * y | Multiplication | Try it » |
| x /= y | x = x / y | Division | Try it » |
| x %= y | x = x % y | Modulus | Try it » |
PHP Comparison Operators
The PHP Comparison Operators are used to compare two values (number or string):
| Operator | Name | Example | Result | Show it |
|---|---|---|---|---|
| == | Equal | $x == $y | Returns true if $x is equal to $y | Try it » |
| === | Identical | $x === $y | Returns true if $x is equal to $y, and they are of the same type | Try it » |
| != | Not equal | $x != $y | Returns true if $x is not equal to $y | Try it » |
| <> | Not equal | $x <> $y | Returns true if $x is not equal to $y | Try it » |
| !== | Not identical | $x !== $y | Returns true if $x is not equal to $y, or they are not of the same type | Try it » |
| > | Greater than | $x > $y | Returns true if $x is greater than $y | Try it » |
| Less than | $x < $y | Returns true if $x is less than $y | Try it » | |
| >= | Greater than or equal to | $x >= $y | Returns true if $x is greater than or equal to $y | Try it » |
| Less than or equal to | $x | Returns true if $x is less than or equal to $y | Try it » | |
| Spaceship | $x $y | Returns an integer less than, equal to, or greater than zero, depending on if $x is less than, equal to, or greater than $y. Introduced in PHP 7. | Try it » |
PHP Increment / Decrement Operators
The PHP increment operators are used to increment a variable’s value.
The PHP decrement operators are used to decrement a variable’s value.
| Operator | Name | Description | Show it |
|---|---|---|---|
| ++$x | Pre-increment | Increments $x by one, then returns $x | Try it » |
| $x++ | Post-increment | Returns $x, then increments $x by one | Try it » |
| —$x | Pre-decrement | Decrements $x by one, then returns $x | Try it » |
| $x— | Post-decrement | Returns $x, then decrements $x by one | Try it » |
PHP Logical Operators
The PHP logical operators are used to combine conditional statements.
| Operator | Name | Example | Result | Show it |
|---|---|---|---|---|
| and | And | $x and $y | True if both $x and $y are true | Try it » |
| or | Or | $x or $y | True if either $x or $y is true | Try it » |
| xor | Xor | $x xor $y | True if either $x or $y is true, but not both | Try it » |
| && | And | $x && $y | True if both $x and $y are true | Try it » |
| || | Or | $x || $y | True if either $x or $y is true | Try it » |
| ! | Not | !$x | True if $x is not true | Try it » |
PHP String Operators
PHP has two operators that are specially designed for strings.
| Operator | Name | Example | Result | Show it |
|---|---|---|---|---|
| . | Concatenation | $txt1 . $txt2 | Concatenation of $txt1 and $txt2 | Try it » |
| .= | Concatenation assignment | $txt1 .= $txt2 | Appends $txt2 to $txt1 | Try it » |
PHP Array Operators
The PHP array operators are used to compare arrays.
| Operator | Name | Example | Result | Show it |
|---|---|---|---|---|
| + | Union | $x + $y | Union of $x and $y | Try it » |
| == | Equality | $x == $y | Returns true if $x and $y have the same key/value pairs | Try it » |
| === | Identity | $x === $y | Returns true if $x and $y have the same key/value pairs in the same order and of the same types | Try it » |
| != | Inequality | $x != $y | Returns true if $x is not equal to $y | Try it » |
| <> | Inequality | $x <> $y | Returns true if $x is not equal to $y | Try it » |
| !== | Non-identity | $x !== $y | Returns true if $x is not identical to $y | Try it » |
PHP Conditional Assignment Operators
The PHP conditional assignment operators are used to set a value depending on conditions:
| Operator | Name | Example | Result | Show it |
|---|---|---|---|---|
| ?: | Ternary | $x = expr1 ? expr2 : expr3 | Returns the value of $x. The value of $x is expr2 if expr1 = TRUE. The value of $x is expr3 if expr1 = FALSE | Try it » |
| ?? | Null coalescing | $x = expr1 ?? expr2 | Returns the value of $x. The value of $x is expr1 if expr1 exists, and is not NULL. If expr1 does not exist, or is NULL, the value of $x is expr2 . Introduced in PHP 7 | Try it » |
PHP Exercises
«Greater than» and «less than» operator not working in a query, $sql = trim(preg_replace(‘/\s\s+/’, ‘ ‘, $sQuery)); $sql = htmlspecialchars($sql); $sql = mysqli_real_escape_string($mysqli, $sql); $sql =
Comparison Operators — PHP Beginner Tutorial
In this PHP Beginner Video Tutorial, you can find Comparison Operators in PHP Programming
Duration: 9:24
Use of greater than or equals(>=) and lesser than or equals(<=) in SQL SELECT statements and PDO
Try adjusting the logic a little. Just like Phoenix Wright, sometimes all it takes it flipping things around to solve them:
$pk = $db->prepare("SELECT `grade` FROM `grading` WHERE ? BETWEEN `min` and `max`"); $pk->execute(array($mark)); $ind = $pk->fetch(PDO::FETCH_ASSOC); echo $ind['grade']; Using a value as the first operand for BETWEEN and IN is not something many people would think of, yet it’s so powerful 😉
More importantly (and thanks to Fred -ii- for accidentally helping me realise), min and max are function names. If you want to use them as column names, you must wrap them in backticks, as I have done in my code above.
As a general rule, you should always put backticks around your table and column names. Not doing so is akin to writing $foo = bar; in PHP. Sure, it’ll work , but if bar happens to be a constant or function name then all hell breaks loose.
You can write 2 different queries:
$pk = $db->prepare("SELECT * FROM grading WHERE max >=:max AND min <=:min"); $pk = $db->prepare("SELECT SOMETHING FROM grading WHERE SOMETHING BETWEEN max AND min"); But in your case the first one works. the problem is that you are using the same variable $mark for both min and max
Laravel eloquent where date is equal or greater than DateTime, What am I doing wrong? Thanks in advance. php mysql laravel datetime eloquent · Share.
PHP Select Value in MySQL Using Greater Than and Less Than
The error was in the Query itself. All I had to do was give the last Column something to compare to so I just added $ship_weight again. Here is the code.
$result = mysql_query("SELECT * FROM weight WHERE '$ship_weight' >= from_weight AND '$ship_weight' I think the problem is that $result will never be empty()
If the query works if will be a resource handle and if it fails it will be false .
$result = mysql_query("SELECT * FROM weight WHERE from_weight >= '$ship_weight' AND to_weight 0) < $response["userID"] = array(); while ($row = mysql_fetch_array($result)) < $custID = array(); $custID["shipping_cost"] = $row["shipping_cost"]; array_push($response["userID"], $custID); >$response["success"] = 1; echo json_encode($response); >else < $response["success"] = 0; $response["message"] = "No shipping found"; echo json_encode($response); >>else Is this a copy and paste of your code? If so, look at this line:
$result = mysql_query("SELECT * FROM weight WHERE from_weight >= '$ship_weight' AND to_weight PHP is considering your $ship_weight variable as part of the string. Change it to:
$result = mysql_query("SELECT * FROM weight WHERE from_weight >= '".$ship_weight."' AND to_weight Also, mysql_* is deprecated. Take a look at the mysqli_* extension.
Java Operators, Logical operators; Bitwise operators. Arithmetic Operators. Arithmetic operators are used to perform common mathematical operations. Operator, Name, Description
'Greater than or equal' and 'less than or equal' CODEIGNITER
I also tested your current query in phpmyadmin, because i could not believe that it does not throw an error. But mine does it. So your query should not work in phpmyadmin.
#1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '=< . ' at line . ->where('payment.paymentdate >=', $month_start) ->where('payment.paymentdate And better but not cumpolsury to join the table before the where condition.Now your query should be like
->select('COUNT(payment.keyid) AS rec_count') ->select('product_key.client_name, product_key.contact_email, product_key.status, product_key.id, payment.paymentdate, (payment.id) as pid,payment.subscription_type') ->from('product_key') ->join('payment', 'payment.keyid=product_key.id', 'left outer') ->where('payment.paymentdate >=', $month_start) ->where('payment.paymentdate where('status', 'purchased') ->order_by('client_name', "asc") ->group_by('product_key.id') ->get() from what i know, you can write them like this
$this->db->select('COUNT(payment.keyid) AS rec_count, product_key.client_name, product_key.contact_email, product_key.status, product_key.id, payment.paymentdate, (payment.id) as pid, payment.subscription_type', false); $this->db->where('payment.paymentdate >= "2013-08-01"'); $this->db->where('payment.paymentdate db->where('status', 'purchased'); $this->db->group_by('product_key.id'); $this->db->order_by('client_name', 'asc'); $this->db->join('payment', 'payment.keyid=product_key.id', 'LEFT OUTER') $this->db->get('product_key'); PHP strcasecmp() Function, This function returns: 0 - if the two strings are equal; <0 - if string1 is less than string2;>0 - if string1 is greater than string2.