The start parameter was added in PHP 5.0. I know 'explode' splits the string and turns it into an array for every occurrence. Changelog: As of PHP 5.0, the find parameter may now be a string of more than one character. Note: String positions start at 0, and not 1. What this means is that they won't ever return false and you'll always get a positive result for e.g. steveoh: strreplace replaces all occurrence, but i want only the first occurrence if it exists in the start like ltrim function remove the first space only. Returns the position of the last occurrence of a string inside another string, or FALSE if the string is not found. these functions return the initial length that matches or doesn't match the given mask/needle (the 'c' in strcspn() stands for "counter"). Is there simple and inbuilt PHP function to remove all string after last occurrence of / character. stripos works same as strpos but it ignores the case. The stripos () function finds the position of the first occurrence of a string inside another string. strpos finds the first occurrence of substring and returns its position. The strpos () function finds the position of the first occurrence of a string inside another string. We can find the index of the first occurrence of a given substring in MySQL using the INSTR () function as follows. If you want to find the first occurence of a character other than 'x', then you need strspn(): php > $pos = strspn('xxxwrrw', 'x') Īnd if you need the first occurence of specifically 'w' or 'r', you'd need strcspn(): php > $pos = strcspn('xxxwrrw', 'rw') īut as I said, there's a small caveat. Let us understand these functions in a tabular form -: strpos () stripos () 1. The optimal way to do this (although with a small caveat) would be one of strspn() or strcspn(), but there's a slight difference depending on exactly what you want to do.
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