UberFoX at 21:02, 16 September 2015

2015-09-16T21:02:04Z

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	<pre>		<pre>
−	StrChr( <haystack>, <char>, <start> )	+	StrChr( <haystack>, <char>, <start>, <count> )
	</pre>		</pre>

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	Optional; Start position to begin searching the haystack from.		Optional; Start position to begin searching the haystack from.

−	~~Can be~~ negative ~~this~~ will ~~cause it to start~~ from ~~haystack~~ length ~~- abs(start) instead~~.	+	If the start is a negative value the character position will work backwards from the length of the string.

	Default: 0		Default: 0
		+
		+	==== count ====
		+
		+	Optional; The number of characters to search. By default the entire remainder of the string.
		+
		+	If count is given and is negative, then that many characters will be omitted from the end of string (after the start position has been calculated when a start is negative). If start denotes the position of this truncation or beyond, NULL will be returned.

	=== Return Value ===		=== Return Value ===

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UberFoX: Created page with "

 StrChr( , ,  )

=== Description === Locate first occurrence of character in string. Returns the position to the first occurrence of characte..."

2013-09-04T10:19:00Z

Created page with "<pre> StrChr( <haystack>, <char>, <start> ) </pre> === Description === Locate first occurrence of character in string. Returns the position to the first occurrence of characte..."

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<pre>
StrChr( <haystack>, <char>, <start> )
</pre>

=== Description ===

Locate first occurrence of character in string.

Returns the position to the first occurrence of character in the string.

The terminating null-character is considered part of the string. Therefore, it can also be located in order to retrieve the length of the string.

=== Parameters ===

==== haystack ====

The string to search in.

==== char ====

Character to be located.

==== start ====

Optional; Start position to begin searching the haystack from.

Can be negative this will cause it to start from haystack length - abs(start) instead.

Default: 0

=== Return Value ===

The position to the first occurrence of character in the haystack.

If the character is not found, the function returns a null.

=== Remarks ===

None.

=== Example ===

<syntaxhighlight lang="sputnik">
$str = "This is a sample string";
$pch = strrchr($str,'s');
printf ("Last occurence of 's' found at %d\n", $pch);
return 0;
// Prints
// Last occurrence of 's' found at 17
</syntaxhighlight>

Example of returning the rest of the string after a match

<syntaxhighlight lang="sputnik">
$str = "This is a sample string";
$pch = strrchr($str,'s');
printf ("Last occurence of 's' found at %d\n", $pch);
printf ("Rest of the string after match is %s\n", substr($str, $pch+1));
return 0;
// Prints
// Last occurence of 's' found at 17
// Rest of the string after match is tring
</syntaxhighlight>

Example of using start parameter

<syntaxhighlight lang="sputnik">
$str = "This is a sample string";
$pch = strrchr($str,'s', 5);
printf ("Last occurence of 's' found at %d\n", $pch);
printf ("Rest of the string after match is %s\n", substr($str, $pch+1));
return 0;
// Prints
// Last occurence of 's' found at 17
// Rest of the string after match is tring
</syntaxhighlight>

Example of using negative start parameter

<syntaxhighlight lang="sputnik">
$str = "This is a sample string";
$pch = strrchr($str,'s', -6);
printf ("Last occurence of 's' found at %d\n", $pch);
printf ("Rest of the string after match is %s\n", substr($str, $pch+1));
return 0;
// Prints
// Last occurence of 's' found at 17
// Rest of the string after match is tring
</syntaxhighlight>

[[Category:Core Function]]

Core Function StrrChr - Revision history

UberFoX at 21:02, 16 September 2015

UberFoX: 1 revision

UberFoX: 1 revision

UberFoX: Created page with "
StrChr( , , )
=== Description === Locate first occurrence of character in string. Returns the position to the first occurrence of characte..."