我有这个文本模拟器，允许访问者选择他们特定的所需字体和他们想要的行数。此功能类似于在ThingsRemembered.com上预览，因此您可以在购买之前查看该项目的外观。它运行良好，但某些特殊字符在模拟器中不起作用。具体如下：
# - Does not appear
& - truncates this and anything after it
+ - Does not appear
\ - Does not appear
' - Erases entire line
我认为我需要转义这些字符并替换为HTML友好的等价物;有没有人有这样做的例子？
<?php
//creates a image handle
$image = imagecreate( 700, 70 );
if(!empty($_GET["bgcolor"])){
$background = imagecolorallocate( $image,0, 0, 0);
}
else {
$background = imagecolorallocate( $image,255, 255, 255);
}
//GET COLORS FROM POST AND SPLIT INTO RGB FORMAT
$color = $_GET["color"];
$pieces = explode("-", $color);
//COLORS
$color = imagecolorallocate($image, hexdec("0x".$pieces[0].""), hexdec("0x".$pieces[1].""), hexdec("0x".$pieces[2].""));
$font = 'fonts/'.$_GET["font"].'';
$fontSize = "25";
$fontRotation = "0";
$str = utf8_encode_mix($_GET["name"]);
// char code replacements
$tb = imagettfbbox(25, 0, $font, $str);
$x = ceil((700 - $tb[2]) / 2);
ImageTTFText($image, $fontSize, $fontRotation, $x, 50, $color, $font, $str);
header("Content-Type: image/PNG");
ImagePng ($image);
imagedestroy($image);
function utf8_encode_mix($input, $encode_keys=false)
{
if(is_array($input))
{
$result = array();
foreach($input as $k => $v)
{
$key = ($encode_keys)? utf8_encode($k) : $k;
$result[$key] = utf8_encode_mix( $v, $encode_keys);
}
}
else
{
$result = utf8_encode($input);
}
return $result;
}
?>
通过将调用PHP页面中的文本传递给此PHP代码来解析用户的输入。输入字符串作为查询字符串变量传递给此例程;这不是我的设计，而是我继承的东西。
答案 0 :(得分：2)
使用
#您需要＃
&你想要一个＆amp;
+你想要一个+
\你想要一个\
答案 1 :(得分：2)
您可以使用以下PHP进行转换：
$html = '&#'.ord('#').';';
ord函数将字符转换为ASCII码（数字）。您可以在此处找到ASCII格式的字符及其数值：http://www.asciitable.com/
转换所有特殊字符的功能：
function convertSpecialToHTML($char) {
$special = ['#', '&', '+', '\\'];
if (in_array($char, $special)) {
return '&#'.ord($char).';';
} else {
return $char;
}
}
您还应该查看htmlentities：
echo htmlentities("I'm a string with all your special characters: \ + & #", ENT_HTML5);
//I'm a string with all your special characters: \ + & #
答案 2 :(得分：0)
特别感谢用户@dorad帮助我正常工作。这是实际工作的代码。我怀疑我的原始版本是为早期版本的PHP编写的，对于较新的PHP版本中的特殊字符无法正常工作。所以不用多说，这是最终的代码：
<?php
//creates a image handle
$image = imagecreate( 700, 70 );
if(!empty($_POST["bgcolor"])){
$background = imagecolorallocate( $image,0, 0, 0);
}
else {
$background = imagecolorallocate( $image,255, 255, 255);
}
//GET COLORS FROM POST AND SPLIT INTO RGB FORMAT
$color = $_POST["color"];
$pieces = explode("-", $color);
//COLORS
$color = imagecolorallocate($image, hexdec("0x".$pieces[0].""), hexdec("0x".$pieces[1].""), hexdec("0x".$pieces[2].""));
$font = 'fonts/'.$_POST["font"].'';
$fontSize = "25";
$fontRotation = "0";
$str = utf8_encode_mix($_POST["name"]);
$regex = $str;
$replaced = preg_replace($regex,"%26",$str);
$tb = imagettfbbox(25, 0, $font, $str);
$x = ceil((700 - $tb[2]) / 2);
ImageTTFText($image, $fontSize, $fontRotation, $x, 50, $color, $font, $str);
header("Content-Type: image/PNG");
ImagePng ($image);
imagedestroy($image);
function utf8_encode_mix($input, $encode_keys=false)
{
if(is_array($input))
{
$result = array();
foreach($input as $k => $v)
{
$key = ($encode_keys)? utf8_encode($k) : $k;
$result[$key] = utf8_encode_mix( $v, $encode_keys);
}
}
else
{
$result = utf8_encode($input);
}
return $result;
}
?>
调用页面index2.php
<div style="padding:00px;">
<strong>Please complete this form to preview the font and color font your name Embroidery: </strong>
<br><br>
<form action="index2.php?page=embroidery" method="post" name="font" style="background-color:#EDFAFC;">
<input name="page" type="hidden" value="lab_coats_embroidery">
<?
function checkcolor ($color) {
if($color == $_POST["color"]){
echo "checked";
}
}
//
?>
<table width="600" border="0" cellspacing="4" cellpadding="4">
<tr>
<td width="163">Please enter your name: </td>
<td width="398">Line 1:
<input name="name" type="text" value="<?=$_POST["name"]?>" size="40">
<br />
Line 2:
<input name="name2" type="text" value="<?=$_POST["name2"]?>" size="40" />
<br />
Line 3:
<input name="name3" type="text" value="<?=$_POST["name3"]?>" size="40" /></td>
<td width="18"> </td>
<td width="21"> </td>
</tr>
<tr>
<td>Please select a font: </td>
<td><select name="font" id="font">
<option value="<?=$_POST["font"]?>"></option>
<option value="brush">Brush script size 14</option>
<option value="athletic">Athletic swoosh</option>
<!--<option value="diana">Diana script</option>-->
<option value="brush738">Brush 738</option>
<option value="helvetica">Helvetica narrow</option>
<option value="homeward">Homeward</option>
<option value="cheltenham">Cheltenham</option>
<option value="athletic_narrow">Athletic Narrow</option>
<option value="courier">Courier</option>
<?php /*?> <option value="cancun">Cancun</option><?php */?>
</select>
Color:
<select name="color" id="color">
<option value="<?=$_POST["color"]?>"></option>
<option value="00-00-00">Black</option>
<option value="cc-00-00">Red</option>
<option value="05-34-92">Royal Blue</option>
<option value="13-2c-61">Navy</option>
<option value="86-00-41">Burgundy</option>
<option value="fd-08-c8">Fuchsia</option>
<option value="73-b9-ff">Sky Blue</option>
<option value="02-74-8c">Teal</option>
<option value="02-4b-2d">Forest Green</option>
<option value="43-07-71">Purple</option>
<option value="ff-c6-00">Gold</option>
<option value="dd-dd-dd">Silver</option>
<option value="96-54-31">Bronze</option>
</select></td>
<td> </td>
<td> </td>
</tr>
<tr>
<td> </td>
<td><input type="submit" name="button" id="button" value="Preview My Name" /></td>
<td> </td>
<td> </td>
</tr>
</table>
</form>
<div style="text-align:center;">
<!-- orig setting height 65px and no background positioning -->
<div style="background-image:url('dpimage.php?name=<?=$_POST["name"]?>&font=<?=$_POST["font"]?>&color=<?=$_POST["color"]?>'); background-repeat:no; background-position: center -20px; width:700px; height:40px;"></div>
<div style="background-image:url('dpimage.php?name=<?=$_POST["name2"]?>&font=<?=$_POST["font"]?>&color=<?=$_POST["color"]?>'); background-repeat:no; background-position: center -20px; width:700px; height:40px;"></div>
<div style="background-image:url('dpimage.php?name=<?=$_POST["name3"]?>&font=<?=$_POST["font"]?>&color=<?=$_POST["color"]?> '); background-repeat:no; background-position: center -20px; width:700px; height:40px;"></div>
</div>
</div>