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PHP - Replacing String Characters With Images
Hi
I am trying to replace characters in a string with images so character 'a' will be replaced with a.jpg etc I have tried the following code but that doesn't result in the desired effect as the updated string gets it's characters replaced as the script works through it so the 'img' in the first updated string gets replaced with with images and it all ends up quite a mess. Is there a simpler way to do this? $content = "abc" ; $content = str_replace("a", "<img src=images/a.jpg >", $content); $content = str_replace("b", "<img src=images/b.jpg >", $content); $content = str_replace("c", "<img src=images/c.jpg >", $content); $content = str_replace("d", "<img src=images/d.jpg >", $content); $content = str_replace("e", "<img src=images/e.jpg >", $content); $content = str_replace("f", "<img src=images/f.jpg >", $content); $content = str_replace("g", "<img src=images/g.jpg >", $content); $content = str_replace("h", "<img src=images/h.jpg >", $content); $content = str_replace("i", "<img src=images/i.jpg >", $content); $content = str_replace("j", "<img src=images/j.jpg >", $content); $content = str_replace("k", "<img src=images/k.jpg >", $content); $content = str_replace("l", "<img src=images/l.jpg >", $content); $content = str_replace("m", "<img src=images/m.jpg >", $content); $content = str_replace("n", "<img src=images/n.jpg >", $content); $content = str_replace("o", "<img src=images/o.jpg >", $content); $content = str_replace("p", "<img src=images/p.jpg >", $content); $content = str_replace("q", "<img src=images/q.jpg >", $content); $content = str_replace("r", "<img src=images/r.jpg >", $content); $content = str_replace("s", "<img src=images/s.jpg >", $content); $content = str_replace("t", "<img src=images/t.jpg >", $content); $content = str_replace("u", "<img src=images/u.jpg >", $content); $content = str_replace("v", "<img src=images/v.jpg >", $content); $content = str_replace("w", "<img src=images/w.jpg >", $content); $content = str_replace("x", "<img src=images/x.jpg >", $content); $content = str_replace("y", "<img src=images/y.jpg >", $content); $content = str_replace("z", "<img src=images/z.jpg >", $content); echo $content ; Any help would be gratefully appreciated. Thanks Megalos (paul) Similar TutorialsHey guys, I have a quick question. Im going to be making a script that will output the name of a news article along with the poster's name beside it. There is only a certain amount of space where that stuff can go so I want to know how I can make it so that say after 20 characters, it ends and puts "..." beside it. Is this possible with php? How would I do it? How come this is not replacing correctly? $rp = strtr($rp,"[TIMES]","<span style='font-family: Times New Roman, Times, serif'>") I want to be able to replace, let's say, every fifth letter from a string. The string is unknown, though, it could come from database, or a POST form. So I'm unsure if I could use str_replace. I think I may need to use preg_replace(), but I'm not not sure. I'm having an issue with users uploading files with a Semi Colon in the file name. I am currently using a script that replaces characters within the file name, however, when I try to add a ";" as invalid characters to replace, it is like the semi-colon just stops the script, as the file does not upload (no errors are displayed). Here's the code I'm working with: $valid_chars_regex = '.A-Z0-9_ !@#$%^&()+={}\[\],~`-'; $file_name = preg_replace('/[^'.$valid_chars_regex.']|\'.+$/i', "", basename($_FILES[$upload_name]['name'])); if (strlen($file_name) == 0 || strlen($file_name) > $MAX_FILENAME_LENGTH) { HandleError("Invalid file name"); exit(0); } I tried placing the semi colon all over the place in the preg_replace function, but nothing seems to work. How can I do this? Ok mixing javascript with php.... im having bugs . I basically want to replace any broken image links with a picture "noimage.gif" in the images folder. I tried this code but am getting the error: Parse error: syntax error, unexpected T_STRING, expecting ',' or ';' in /home/wormste1/public_html/tilburywebdesign/shop/FTPServers/barryottley/showroom.php on line 78 This is the javascript header - all seems fine: <script language="JavaScript" type="text/javascript"> function ImgError(source){ source.src = "/images/noimage.gif"; source.onerror = ""; return true; } </script> this is the code thats erroring... is it the way ive written in the code into the IMG tag? while($row = mysql_fetch_array($result)){ echo "<TABLE CELLPADDING=0 CELLSPACING=0 WIDTH=100% BORDER=0>"; echo "<TR />"; echo "<TD WIDTH=30% VALIGN=TOP />"; echo " <A HREF='images/".$row['photo']."' target=_blank><IMG SRC='images/".$row['photo']."' width=186 height=155 border=0 onerror="ImgError(this);" /></A> "; echo "<br />"; echo "</TD>"; echo "<TD WIDTH=10 VALIGN=TOP />"; Does anybody know of a function or a way of letting me get the string between whatever characters? Say I had [SOMEWORD] text [SOMEWORD] then how could I go about getting the value "text", please note I'm not trying to make bbcode or similar. Am looking forward to removing all the numeric characters upto and including the leading "/" in 90/_featuredarticles/2011/12 Regards Hello Everyone, I am working on a project I pull the field names from the database. I am trying to remove the underscore (_) when the field name is displayed. Does anyone know how I would do that? Here is the code that I am working with Code: [Select] $i = 0; while ($i < mysql_num_fields($fieldnamesquery_result)) { $meta = mysql_fetch_field($fieldnamesquery_result, $i); if (!$meta) { echo "No information available"; } $meta = str_replace("_", " ", $meta); $tablecolumn .= "<p>" . $meta->name . ":<input type='text' name='" . $meta->name . "' id='" . $meta->name . "' /></p>"; $i++; Hi, I am trying to search a string for a string of characters in this order ../ and carry out relevant if statements but it returns the same result every time. On echoing my $pos, $pos2, $pos3 and $pos4 variables the first two come back 0 and they are the strings that do contain ../ but the if statements perform the same? I don't understand, any ideas? Thanks... Code: [Select] <?php $logo = $info ['logo']; $pos = strpos($logo, "../");//check if image contains ../ if ($pos == 0) {} else { $logo = substr($logo, 3);} $image1 = $info ['image1']; $pos1 = strpos($image1, "../");//check if image contains ../ if ($pos1 == 0) {} else { $image1 = substr($image1, 3);} $image2 = $info ['image2']; $pos2 = strpos($image2, "../");//check if image contains ../ if ($pos2 == 0) {} else { $image2 = substr($image2, 3);} $image3 = $info ['image3']; $pos3 = strpos($image3, "../"); //check if image contains ../ if ($pos3 == 0) {} else { $image3 = substr($image3, 3);} ?> How I can explode by a series of characters (not one single character)? For example, divide the string to an array by any of these characters "," and ";" and "." $string = "this, that;some.word;second"; I want to put all of these words into an array. In <div id="chart_rt">%3$s</div> below, it is populated with a string that always begins with a number followed by a colon (from 1: to 25:). I see that ltrim removes characters from the beginning of a string but I don't see how to compensate for the extra character in 10: through 25: function wp_rss( $url, $num_items = -1 ) { if ( $rss = fetch_rss( $url ) ) { echo '<div id="charts">'; if ( $num_items !== -1 ) { $rss->items = array_slice( $rss->items, 0, $num_items ); } //start count $i = 1; foreach ( (array) $rss->items as $item ) { printf( '<div id="chart_lt">'.$i.'</div><div id="chart_rt">%3$s</div>', esc_url( $item['link'] ), esc_attr( strip_tags( $item['description'] ) ), htmlentities( $item['title'] ) ); //increment $i++; } echo '</div>'; } else { _e( 'An error has occurred, which probably means the feed is down. Try again later.' ); } } Hi, Im looking at using a statement like this to remove all text characters from a string. $outgoing = substr_replace($incoming,"",-1); The string is a currency that has a currency symbol in the beginning of the string, like "R500.00" I would like to remove the R, so it is just a numeric value... Please can you help me with any ideas on how to get this going? Been reading so much and its all confused me too badly. Regards, Chris I have a large amount of text, (text can be different at any time), I count the number of characters in the string,and divide it by 2 so that half of the text will be in one variable, the other half in the other, however I am not sure how to get the split function, or whichever function to split it by the number of characters. example: $text = "lorem ispum dolar sit amet, consecterur adiscing elit. Donec dictum placerat sapien, in eliefend liber"; $cut = strlen($text)/2; //(here's where i cannot get it to work/do not know which function to use and how to use it) //but what I want it to do is to split it half way. This topic has been moved to PHP Regex. http://www.phpfreaks.com/forums/index.php?topic=320682.0 I want to allow Alphabetical strings, Numeric strings, and Alphanumeric strings. For example "Bob", "1234", "bob1234" are all valid. I want to check if the string has invalid characters, return true if it does (or false, which ever method works). How can I do it? Hi.. I am relatively new. I am trying to show an image link in my code below: $image = "<img src=<imgpg/" . $part_no . ".JPG />"; <td class = "guide_body" width = "66%"></td><td align = "center"><?php echo $image;?> There is more code but these are the problem lines I believe. Both are within the php environment.
This is producing:
It is supposed to look like this: So it is adding %3C for some reason between localhost and imgpg directory. I have no idea why this is happening. Is there something I can do to prevent this from happening? Or is there something I can do to erase the extra characters. (I'm not sure if they might be different though at some point. I have the same problem both on my local computer and the remote server.) Thanks very much for any help!! I have a variable called $content and I want it to stop execution at 25 characters... How can this be accomplished? Thanks in advance. |
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