strrchr Function Detailed Usage: How to Return the Content After the Last Character in a String

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<p>Detailed Usage of strrchr Function: How to Return the Content After the Last Character in a String</p>
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<p>In PHP, the strrchr() function is used to find the last occurrence of a character in a string</p>
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<p>and returns that character along with everything after it. This article provides a detailed guide on how to use this function with examples.</p>
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<p>Function Prototype:</p>
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<p>string strrchr ( string $haystack , mixed $needle )</p>
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<p>Parameters:</p>
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<p>$haystack: The string to search in.</p>
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<p>$needle: The character to find. Only the first character will be used for searching.</p>
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<p>Return Value:</p>
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<p>Returns the substring from the last occurrence of $needle to the end of the string.</p>
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<p>Returns FALSE if the character is not found.</p>
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<p>Basic Usage Example<br>
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$str = "hello world";<br>
$lastPart = strrchr($str, 'o');<br>
echo "String: $str\n";<br>
echo "Content after character 'o':" . $lastPart . \n";<br>
// Output: o world</p>
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<p>/**</p>
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<p>2. Notes</p>
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<p>The $needle parameter only takes the first character; extra characters are ignored.</p>
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<p>If $needle is a string, only its first character is used for searching.</p>
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<p>If the specified character is not found, the function returns FALSE.<br>
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<p>// Find character 'l'<br>
$result = strrchr($str, 'l');<br>
echo "Content after character 'l':" . $result . \n"; // Output: ld</p>
<p>// Find a non-existent character 'x'<br>
$result2 = strrchr($str, 'x');<br>
var_dump($result2); // bool(false)</p>
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<p>3. Usage Notes</p>
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<p>strrchr() is case-sensitive.</p>
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<p>For case-insensitive searches, use strripos() to get the position and then manually extract the substring.</p>
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<p>Combined Example: Getting File Extension<br>
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<p>$filename = "example.document.pdf";<br>
$extension = strrchr($filename, '.');<br>
echo "The file extension is: " . $extension . \n"; // Output: .pdf</p>
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<p>5. Summary</p>
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<p>strrchr() is a convenient and quick string function, often used to extract the last occurrence of a character and everything after it.</p>
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<p data-is-last-node="">It is useful for quickly getting paths, file extensions, or content after punctuation.<br>
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