Line #<b>0</b> : &lt;?php
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Line #<b>1</b> : 
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Line #<b>2</b> : /**
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Line #<b>3</b> :  *  Reads the contents of a text file (this script) into an array
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Line #<b>4</b> :  *  then echos the array line by line to the screen  
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Line #<b>5</b> :  *  
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Line #<b>6</b> :  * 
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Line #<b>7</b> :  */
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Line #<b>8</b> : 
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Line #<b>9</b> : 
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Line #<b>10</b> : // Print out what I found.
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Line #<b>11</b> : 
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Line #<b>12</b> : $lines = file('text_file_printer.php');
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Line #<b>13</b> : 
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Line #<b>14</b> : // Loop through our array, show HTML source as HTML source; and line numbers too.
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Line #<b>15</b> : foreach ($lines as $line_num =&gt; $line) {
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Line #<b>16</b> :    echo &quot;Line #&lt;b&gt;{$line_num}&lt;/b&gt; : &quot; . htmlspecialchars($line) . &quot;&lt;br /&gt;\n&quot;;
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Line #<b>17</b> :    }
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Line #<b>18</b> : 
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Line #<b>19</b> : ?&gt; <br />