mb_strrchr

(PHP 5 >= 5.2.0, PHP 7)

mb_strrchr — Finds the last occurrence of a character in a string within another

Descrierea

mb_strrchr ( string $haystack , string $needle , bool $before_needle = false , string|null $encoding = null ) : string|false

mb_strrchr() finds the last occurrence of needle in haystack and returns the portion of haystack. If needle is not found, it returns false.

Parametri

haystack: The string from which to get the last occurrence of needle
needle: The string to find in haystack
before_needle: Determines which portion of haystack this function returns. If set to true, it returns all of haystack from the beginning to the last occurrence of needle. If set to false, it returns all of haystack from the last occurrence of needle to the end,
encoding: Character encoding name to use. If it is omitted, internal character encoding is used.

Valorile întoarse

Returns the portion of haystack. or false if needle is not found.

Istoricul schimbărilor

Versiune	Descriere
8.0.0	`encoding` is nullable now.

A se vedea și

strrchr() - Find the last occurrence of a character in a string
mb_strstr() - Finds first occurrence of a string within another
mb_strrichr() - Finds the last occurrence of a character in a string within another, case insensitive

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User Contributed Notes 1 note

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Anonymous ¶

1 year ago


needle: /       
string: o/a/i

if before_needle is 1  then needle is excluded: "o/a"
if before_needle is false  then needle is included:  "/i" 

as code:

$str="o/a/i";
$cs="/";

echo "if before_needle == 1  then needle is excluded"."\n";
$str="o/a/i";
$cs="/";
echo mb_strrchr ($str,$cs,1)."\n";

echo "if before_needle == false  then needle is included"."\n";
$str="o/a/i";
$cs="/";
echo mb_strrchr ($str,$cs,0)."\n";

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