Remove Table Row by ID tag

[paolo]

Hello people,

 

i have a small problem with regex... 

 

 

1. I have a string which contains HTML code of some Table Rows in this format:

<tr id="systemhalfTableRow_(A|B)[NUMBER]">...dynamic content...</tr>

 

Now i need to remove this table row from the string with all the other rows in it.

 

2. Lets say this is my string with my rows

$tableRows = '<tr id="systemhalfTableRow_A1"><td>Hello</td></tr>
<tr id="systemhalfTableRow_B12"><td>Hello</td></tr>
<tr id="systemhalfTableRow_A2"><td>Hello</td></tr>';

 

3. I want to delete the rows with the id A from 1 to 2

for($i = 1; $i <= 2; $i++) {
$id = 'systemhalfTableRow_A' . $i;
preg_replace(PATTERN, '', $tableRows);
}

 

4. What should remain after that?

<tr id="systemhalfTableRow_B12"><td>Hello</td></tr>

 

I would like to use PREG

 

Please helf me with this one

Thank you!

 

greetings,

paolo

[.josh]

$tableRows = '<tr id="systemhalfTableRow_A1"><td>Hello</td></tr>
<tr id="systemhalfTableRow_B12"><td>Hello</td></tr>
<tr id="systemhalfTableRow_A2"><td>Hello</td></tr>';

$tableRows = preg_replace('~<tr id="systemhalfTableRow_A[1-2]">.*?</tr>~','',$tableRows);

 

However...this isn't really perfect... if you have nested tables within this, it's not going to match right.  You should really be using DOM to parse html, instead of regex.