Regular expressions doesn't change any text in PHP

Regular expressions doesn't change any text in PHP

I have this code to replace every number (and point) and replace it by and the text

$i');     $mag = preg_replace($buscarRegex, $reemplazo, $cadena);       return $cadena;  }    $string = "1. Krewella - Can't Control Myself  2. Kdrew - Circles  3. Korn Feat. Skrillex & Kill The Noise - Narcissistic Cannibal  4. Netsky - Love Has Gone  5. Example - Midnight Run (Flux Pavilion Remix)  6. Madeon - Finale (Radio Version)  7. Feed Me Vs. Knife Party Vs. Skrillex - My Pink Reptile Party (Maluu's Slice'n'diced Mashup)  8. Krewella & Pegboard Nerds - This Is Not The End  9. Skrillex - Bangarang  10. The Prototypes - Suffocate  11. Ayah Marar - Mind Controller (Cutline Remix)  12. Skrillex Feat. Krewella - Breathe (Vocal Edit)  13. Utah Saints Vs. Drumsound & Bassline Smith - What Can You Do For Me (Tantrum Desire Remix)  14. Nero - Promises (Skrillex & Nero Remix)  15. 20 Florence & The Machine - Cosmic Love (Seven Lions Remix)";    echo reem2(nl2br($string));    ?>  

But it doesn't work, It doesn't change anything:

The output in HTML would be:

1. Krewella - Can't Control Myself

2. Kdrew - Circles

3. Korn Feat. Skrillex & Kill The Noise - Narcissistic Cannibal

4. Netsky - Love Has Gone

5. Example - Midnight Run (Flux Pavilion Remix)

6. Madeon - Finale (Radio Version)

7. Feed Me Vs. Knife Party Vs. Skrillex - My Pink Reptile Party (Maluu's Slice'n'diced Mashup)

8. Krewella & Pegboard Nerds - This Is Not The End

9. Skrillex - Bangarang

10. The Prototypes - Suffocate

11. Ayah Marar - Mind Controller (Cutline Remix)

12. Skrillex Feat. Krewella - Breathe (Vocal Edit)

13. Utah Saints Vs. Drumsound & Bassline Smith - What Can You Do For Me (Tantrum Desire Remix)

14. Nero - Promises (Skrillex & Nero Remix)

15. 20 Florence & The Machine - Cosmic Love (Seven Lions Remix)

What can I do?

Answer by exussum for Regular expressions doesn't change any text in PHP

return $cadena;  

is your problem, Your doing the replace and then throwing the result away and returning the input

return $mag;  

is probably what you meant

in fact your regex is also wrong

function reem2($cadena) {       $buscarRegex = array('/^([0-9]{1,2}\.)(.*)$/m');     $reemplazo = array('\1\2');     $mag = preg_replace($buscarRegex, $reemplazo, $cadena);       return $mag;  }  

seems to be what you want.

Answer by Marc B for Regular expressions doesn't change any text in PHP

Your regex is broken:

/^([0-9]{1}|[.])$/i   ^-- start of line                   ^--- end of line  

you are allowing only for one SINGLE character on a line by itself, so the regex can never match anything.

You probably want something more like this:

/^([\d]+)\./  

which will match any number of digits at the start of the line, which are followed by a single ..

Answer by Orangepill for Regular expressions doesn't change any text in PHP

function reem2($cadena) {       $buscarRegex = array('/^([0-9]+\.)/m'); // changed modifier to multiline     $reemplazo = array('$1'); // changed replacement to a capture offset     return preg_replace($buscarRegex, $reemplazo, $cadena);  }  

Answer by Karo for Regular expressions doesn't change any text in PHP

So from what I see, your regex is incorrect and you're returning the incorrect variable in function reem2, so try replacing your function with something like this

function reem2($cadena) {      return preg_replace("/([0-9]+\.)/", "$1", $cadena);  }  

Answer by HamZa for Regular expressions doesn't change any text in PHP

You may use the following code:

function reem2($cadena) {     $buscarRegex = array('/^(\d+\.)/mi'); // This means match any digit(s) followed by a dot at the beginning of each line. Note the m modifier     $reemplazo = array('$1'); // replace should be with group 1, not some vague $i     $mag = preg_replace($buscarRegex, $reemplazo, $cadena);     return $mag; // return value: fixed  }  

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