Php - Others

• PHP development environment
• Console Panel
  • Start Server Apache & MySQL
  • Go to LocalHost
  • Go to PHPMyAdmin
• C:\xampp\htdocs => Make projects inside this path

• Operators
  • Arithmetic => +, -, /, *
  • Assignment => =, +=, -=, /=, *=
  • Comparison => ==, !=, >=, <=
  • Increment/Decrement => ++, --
  • Logical => &&, ||, xor, !
• Data Types
  • String => $varName = "value"
  • Integer => $varName = N
  • Float => $varName = N.M
  • Boolean => $varName = true
  • Array => $varName = array("value1", "value2", "value3");
  • Object
• Syntax

      <?php
          // Single-line Comment
          /* Multi-line Comment */
          define("varName", value); // Constant
          $varName = value; // Initialize a variable
          var_dump(varName) // Returns type of the variable
      ?>
  

    <?php
        echo "Namaste Dunia!"; // Prints the string value given
        echo "<br>"; // Executes the HTML
        echo $varName; // Prints the value of the variable
        echo $varName[N]; // Prints element in an array
    ?>

    <?php
        if (condition1) {
            // Statements
        } else if (condition2) {
            // Statements
        } else {
            // Statements
        }
    ?>

    <?php
        for ($a = N1; $a < N2; $a++) {
            // Statements
        }
        foreach ($varName as $value) {
            // Statements
        }
        while (condition) {
            // Statements
        }
        do {
            // Statements
        } while (condition);
    ?>

• count($varName) => Returns total number of elements

• $varName."value" => String concatenation
• strlen($varName) => Returns length of string
• str_word_count($varName) => Returns number of words in string
• strrev($varName) => Returns reversed string
• strpos($varName, "value") => Returns the position of the value in string
• str_replace("value1", "value2", $varName) => Returns the string with replaced value

    function varName(arguments) {
        // Statements
    }
    varName(parameters);