---
title: "strcmp | open.mp"
description: "Compares two strings to see if they are the same."
canonical: https://omp.itsneufox.com/docs/scripting/functions/strcmp
language: en
---

# strcmp

## Description

Compares two strings to see if they are the same.

| Name | Description |
| --- | --- |
| const string1\[\] | The first string to compare. |
| const string2\[\] | The second string to compare. |
| bool:ignorecase _(optional)_ | When set to **true**, the case doesn't matter - HeLLo is the same as Hello. When **false**, they're not the same. |
| length _(optional)_ | When this length is set, the first x chars will be compared - doing "Hello" and "Hell No" with a length of 4 will say it's the same string. |

## Returns

**0** if strings match each other on given length.

**1** or **\-1** if some character do not match: `string1[i] - string2[i]` ('`i`' represents character index starting from 0)

**difference in number of characters** if one string matches only part of another string.

## Examples

```c
new string1[] = "Hello World";
new string2[] = "Hello World";

// Check if the strings are the same
if (!strcmp(string1, string2))

new string3[] = "Hell";

// Check if the first 4 characters match
if (!strcmp(string2, string3, false, 4))

// Check for null strings with isnull()
if (!strcmp(string1, string2) && !isnull(string1) && !isnull(string2))

// Definition for isnull():
#if !defined isnull
    #define isnull(%1) ((!(%1[0])) || (((%1[0]) == '\1') && (!(%1[1]))))
#endif
```

## Notes

warning

If you compare strings from a text file, you should take in to account the 'carriage return' and 'new line' special characters (`\r` `\n`), as they are included, when using [fread](https://omp.itsneufox.com/docs/scripting/functions/fread).

## Related Functions

-   [strfind](https://omp.itsneufox.com/docs/scripting/functions/strfind): Search for a string in another string.
-   [strequal](https://omp.itsneufox.com/docs/scripting/functions/strequal): Compares two strings to see if they are the same.
-   [strdel](https://omp.itsneufox.com/docs/scripting/functions/strdel): Delete part of a string.
-   [strins](https://omp.itsneufox.com/docs/scripting/functions/strins): Insert text into a string.
-   [strlen](https://omp.itsneufox.com/docs/scripting/functions/strlen): Get the length of a string.
-   [strmid](https://omp.itsneufox.com/docs/scripting/functions/strmid): Extract part of a string into another string.
-   [strpack](https://omp.itsneufox.com/docs/scripting/functions/strpack): Pack a string into a destination string.
-   [strval](https://omp.itsneufox.com/docs/scripting/functions/strval): Convert a string into an integer.
-   [strcat](https://omp.itsneufox.com/docs/scripting/functions/strcat): Concatenate two strings into a destination reference.

## Tutorials

-   [String Manipulation](https://omp.itsneufox.com/docs/tutorials/stringmanipulation)