PHP String Functions

How To Find First Occurrence in String - strstr() and stristr() Function

The strstr() function and stristr() function can find the first occurrence of a substring (second parameter) inside another string (first parameter), and return all characters from the first occurrence till the end of the string.

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How To Find Part of String - substr() Function

The substr() function returns a part of a string.

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How To Find String Length in PHP - strlen() Function

The strlen() function returns the length of a given string. It returns 0 if the string is empty.

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How To Remove Whitespace Characters in a string in PHP - trim() Function

Many times, the strings have extra spaces that need to be removed. For example, you might want to replace multiple spaces with a single space or you might want to get rid of all the whitespace in a string. Similarly, you might be planning on stripping all the whitespace from either the left or the right end of a string.

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How To Split String In PHP Using Delimiter - explode() Function

The explode() function in PHP is used to split a string into multiple strings based on the specified delimiter. It is similar to the split function in Perl.

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Searching for a Pattern Using preg_match()

The preg_match() function searches a string for a specific pattern, returning TRUE if it exists and FALSE otherwise.

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String Functions in PHP

All these functions are used to manipulate strings. They are part of the PHP core, so you don't have to install anything to use these functions.

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