If statement with multiple conditions in php

• If statement with OR (||) condition in php

  $var = "abc";
  if($var == "abc" || $var == "def") 
  { 
      echo "true"; 
  }
  

  It will return true if the value of $var is abc or def. If the value we assign to $var is not equal to “abc” or “def” then the if statement will not be executed.

• If statement with AND (&&) condition in php

  if($var == "abc" && $var2 == "def") 
  { 
      echo "true"; 
  }
  

  It will return true if both conditions are true like if the value of $var is abc and the value of $var2 is def. If any of the values of these two variables is not equal to the passed value after the (==) operator then the if statement will not be executed.

• If statement with elseif and else condition in PHP

  <?php
  $records = ['first', 'second', 'third'];
  
  if (count($records) === 1){
      echo "I have one record! ";
  }
  elseif (count($records) > 1)
      echo "I have multiple records!";
  else{
      echo "I don't have any records!";
  }
  ?>
  

• Can I have multiple conditions for a single if statement ?

  Yes, you could use && and || for that. && is for 'and', || is for 'or'. for instance:

  if($text == "Hello" && $text2 == "hi"){
  code which should be executed when both statements are true;
  }
  

  or:

  if($text == "Hello" || $text == "bye"){
  code which should be executed when $text is either equal to "Hello" or equal to "bye";
  }
  

• How to check multiple condition using if statement?

  <?
  if ($username == "Admin"){
      echo ('Welcome to the admin page.');
  }
  elseif ($username == "Guest"){
      echo ('Please take a look around.');
  }
  else {
      echo ("Welcome back, $username.");
  }
  ?>
  

• How do you write multiple conditions in an if statement in PHP?

  • if statement - executes some code if one condition is true.
  • if...else statement - executes some code if a condition is true and another code if that condition is false.
  • if...elseif...else statement - executes different codes for more than two conditions.
  • switch statement - selects one of many blocks of code to be executed .

• Can you include multiple conditions in an if statement?

  A nested if statement is an if statement placed inside another if statement. Nested if statements are often used when you must test a combination of conditions before deciding on the proper action.

• What is nested IF statement in PHP?

  You can have if statements inside if statements, this is called a nested if.

• What is the difference between if and nested IF?

  It executes a block of code if the condition written with the if statement is true. However, in the nested if statement this block of code referred to in the previous line would be another if condition. However, it will also execute if the condition written inside it is true otherwise not.

• What is faster if or case?

  As it turns out, the switch statement is faster in most cases when compared to if-else , but significantly faster only when the number of conditions is large.

• What is the syntax of nested IF?

  A nested if statement is an if-else statement with another if statement as the if body or the else body. Here's an example: if ( num > 0 ) // Outer if if ( num < 10 ) // Inner if System. out.

• How do you or condition in if in PHP?

  In this example, we will write an if statement with compound condition. The compound condition contains two simple conditions and these are joined by OR logical operator. <? php $a = 2; $b = 8; if ( ( $a == 2 ) || ( $b == 5 ) ) { echo "a is 2 or b is 5."; } ?>.

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