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if statement – PHP: How can I determine if a variable has a value that is between two distinct constant values?

Posted by: admin April 23, 2020 Leave a comment

Questions:

How can I determine using PHP code that, for example, I have a variable that has a value

  • between 1 and 10, or
  • between 20 and 40?
How to&Answers:
if (($value > 1 && $value < 10) || ($value > 20 && $value < 40))

Answer:

Do you mean like:

$val1 = rand( 1, 10 ); // gives one integer between 1 and 10
$val2 = rand( 20, 40 ) ; // gives one integer between 20 and 40

or perhaps:

$range = range( 1, 10 ); // gives array( 1, 2, ..., 10 );
$range2 = range( 20, 40 ); // gives array( 20, 21, ..., 40 );

or maybe:

$truth1 = $val >= 1 && $val <= 10; // true if 1 <= x <= 10
$truth2 = $val >= 20 && $val <= 40; // true if 20 <= x <= 40

suppose you wanted:

$in_range = ( $val > 1 && $val < 10 ) || ( $val > 20 && $val < 40 ); // true if 1 < x < 10 OR 20 < x < 40

Answer:

if (($value >= 1 && $value <= 10) || ($value >= 20 && $value <= 40)) {
   // A value between 1 to 10, or 20 to 40.
}

Answer:

You can do this:

if(in_array($value, range(1, 10)) || in_array($value, range(20, 40))) {
   # enter code here
}

Answer:

Guessing from the tag ‘operand’ you want to check a value?

$myValue = 5;
$minValue = 1;
$maxValue = 10;

if ($myValue >= $minValue && $myValue <= $maxValue) { 
  //do something
}

Answer:

A random value?

If you want a random value, try

<?php
$value = mt_rand($min, $max);

mt_rand() will run a bit more random if you are using many random numbers in a row, or if you might ever execute the script more than once a second. In general, you should use mt_rand() over rand() if there is any doubt.

Answer:

If you just want to check the value is in Range, use this:

   MIN_VALUE = 1;
   MAX_VALUE = 100;
   $customValue = min(MAX_VALUE,max(MIN_VALUE,$customValue)));

Answer:

Try This

if (($val >= 1 && $val <= 10) || ($val >= 20 && $val <= 40))

This will return the value between 1 to 10 & 20 to 40.

Answer:

returns true if subject is between low and high (inclusive)

$between = function( $low, $high, $subject ) {
    if( $subject < $low ) return false;
    if( $subject > $high ) return false;
    return true;
};

if( $between( 0, 100, $givenNumber )) {
   // do whatever...
}

looks cleaner to me