How To Compare Two Strings with Comparison Operators

Q

How To Compare Two Strings with Comparison Operators? - PHP Script Tips - Understanding String Literals and Operations

✍: FYIcenter.com

A

PHP supports 3 string comparison operators, <, ==, and >, that generates Boolean values. Those operators use ASCII values of characters from both strings to determine the comparison results. Here is a PHP script on how to use comparison operators:

<?php
$a = "PHP is a scripting language.";
$b = "PHP is a general-purpose language.";
if ($a > $b) {
  print('$a > $b is true.'."\n");
} else {
  print('$a > $b is false.'."\n");
}
if ($a == $b) {
  print('$a == $b is true.'."\n");
} else {
  print('$a == $b is false.'."\n");
}
if ($a < $b) {
  print('$a < $b is true.'."\n");
} else {
  print('$a < $b is false.'."\n");
}
?>

This script will print:

$a > $b is true.
$a == $b is false.
$a < $b is false.

2007-04-20, 4859👍, 0💬

How To Convert Strings to Numbers
How To Convert Strings to Numbers? - PHP Script Tips - Understanding String Literals and Operations In a numeric context, PHP will automatically convert any string to a numeric value. Strings will be converted into two types of numeric values, double floating number and integer, based on the followi... 2007-04-20, 5132👍, 0💬

Which HTML Tag Allows Users to Specify a File for Uploading
Which HTML Tag Allows Users to Specify a File for Uploading? - PHP Script Tips - Uploading Files to Web Servers To present an input field on your Web page to allow users to specify a local file to upload, you need to use the <INPUT TYPE="FILE" ...> tag inside a <FORM ...> tag. The &... 2007-04-19, 5116👍, 0💬

How To Convert Numbers to Strings
How To Convert Numbers to Strings? - PHP Script Tips - Understanding String Literals and Operations In a string context, PHP will automatically convert any numeric value to a string. Here is a PHP script examples: <?php print(-1.3e3); print("\n"); print(strlen(-1.3e3)); print("\n"); print("Pr... 2007-04-20, 5094👍, 0💬

How To Concatenate Two Strings Together
How To Concatenate Two Strings Together? - PHP Script Tips - Understanding String Literals and Operations You can use the string concatenation operator (.) to join two strings into one. Here is a PHP script example of string concatenation: <?php echo 'Hello ' . "world!\n"; ?> This scri... 2007-04-20, 5043👍, 0💬

How To Access a Specific Character in a String
How To Access a Specific Character in a String? - PHP Script Tips - Understanding String Literals and Operations Any character in a string can be accessed by a special string element expression: $string{index} - The index is the position of the character counted from left and starting from 0. Here i... 2007-04-20, 5034👍, 0💬

How Many Ways to Include Variables in Double-Quoted Strings
How Many Ways to Include Variables in Double-Quoted Strings? - PHP Script Tips - Understanding String Literals and Operations There are 3 formats to include variables in double-quoted strings: "part 1 $variable part 2" - This is the simplest format to include a variable in a string. The variable nam... 2007-04-20, 4881👍, 0💬

How To Write the FORM Tag Correctly for Uploading Files
How To Write the FORM Tag Correctly for Uploading Files? - PHP Script Tips - Uploading Files to Web Servers When users clicks the submit button, files specified in the <INPUT TYPE=FILE...> will be transferred from the browser to the Web server. This transferring (uploading) process is control... 2007-04-19, 4874👍, 0💬

How To Compare Two Strings with Comparison Operators
How To Compare Two Strings with Comparison Operators? - PHP Script Tips - Understanding String Literals and Operations PHP supports 3 string comparison operators, <, ==, and >, that generates Boolean values. Those operators use ASCII values of characters from both strings to determine ... 2007-04-20, 4860👍, 0💬

How To Assigning a New Character in a String
How To Assigning a New Character in a String? - PHP Script Tips - Understanding String Literals and Operations The string element expression, $string{index}, can also be used at the left side of an assignment statement. This allows you to assign a new character to any position in a string. Here is a... 2007-04-20, 4845👍, 0💬

All rights in the contents of this web site are reserved by the individual author. fyicenter.com does not guarantee the truthfulness, accuracy, or reliability of any contents.