PHP:Find Position

PHP:String Functions

Contains

Ends With

Equal Strings

Find Position

Formatting

Using Print Formatting

Lower Case

Join Strings

Starts With

String Length

Special Characters

Split a String

Substring

Upper Case

You can use the strpos function to find the position of a string within a string.

Find first occurrence

Use strpos($s,$t) to find where $t occurs in $s.

   $s             strpos($s,"t")

One two three        4
four five six        

strpos($s,"t") gives the character position of the first "t" in $s.

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strpos($s,"t")

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test text

 

 

 

 

Find last occurrence

Use strrpos($s,$t) to find the last place where $t occurs in $s.

   $s             strrpos($s,"t")

One two three        8
four five six        

strrpos($s,"t") gives the character position of the last "t".

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strrpos($s,"t")

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test text

 

 

 

 

Find occurrence after ...

Use strpos($s,$t,$n) to find where $t occurs in $s after $n.

  $s             index($s,"t",5)

One two three        8
four five six        

strpos($s,"t",5) gives the character position of the first "t" after position 5.

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strpos($s,"t",5)

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test text