我如何修改file_get_contents以便它只返回1000行重复项中的唯一错误
$this->data['log'] = file_get_contents($file, FILE_USE_INCLUDE_PATH, null);
<textarea wrap="off" style="width: 98%; height: 300px; padding: 5px; border: 1px solid #CCCCCC; background: #FFFFFF; overflow: scroll;"><?php echo $log; ?></textarea>
错误：
2013-01-10 0:26:45 - PHP Notice: Undefined index: name in /var/www/example/public/vqmod/vqcache/vq2-catalog_controller_product_product.php on line 159
2013-01-10 0:27:02 - PHP Notice: Undefined index: name in /var/www/example/public/vqmod/vqcache/vq2-catalog_controller_product_product.php on line 159
2013-01-10 0:27:04 - PHP Notice: Undefined index: name in /var/www/example/public/vqmod/vqcache/vq2-catalog_controller_product_product.php on line 159
2013-01-10 0:29:25 - PHP Notice: Undefined variable: thumb in /var/www/example/public/catalog/view/theme/example/template/product/manufacturer_info.tpl on line 23
2013-01-10 0:29:25 - PHP Notice: Undefined variable: description in /var/www/example/public/catalog/view/theme/example/template/product/manufacturer_info.tpl on line 23
2013-01-10 0:29:25 - PHP Notice: Undefined variable: categories in /var/www/example/public/catalog/view/theme/example/template/product/manufacturer_info.tpl on line 34
2013-01-10 0:29:25 - PHP Notice: Undefined variable: categories in /var/www/example/public/catalog/view/theme/example/template/product/manufacturer_info.tpl on line 98
2013-01-10 2:46:25 - PHP Notice: Undefined index: name in /var/www/example/public/vqmod/vqcache/vq2-catalog_controller_product_product.php on line 159
2013-01-10 6:09:58 - PHP Notice: Undefined variable: thumb in /var/www/example/public/catalog/view/theme/example/template/product/manufacturer_info.tpl on line 23
2013-01-10 6:09:58 - PHP Notice: Undefined variable: description in /var/www/example/public/catalog/view/theme/example/template/product/manufacturer_info.tpl on line 23
2013-01-10 6:09:58 - PHP Notice: Undefined variable: categories in /var/www/example/public/catalog/view/theme/example/template/product/manufacturer_info.tpl on line 34
2013-01-10 6:09:58 - PHP Notice: Undefined variable: categories in /var/www/example/public/catalog/view/theme/example/template/product/manufacturer_info.tpl on line 98
2013-01-10 9:54:45 - PHP Notice: Undefined index: name in /var/www/example/public/vqmod/vqcache/vq2-catalog_controller_product_product.php on line 159
2013-01-10 10:43:53 - PHP Notice: Undefined index: name in /var/www/example/public/vqmod/vqcache/vq2-catalog_controller_product_product.php on line 159
2013-01-10 12:03:27 - PHP Notice: Undefined index: name in /var/www/example/public/vqmod/vqcache/vq2-catalog_controller_product_product.php on line 159
2013-01-10 12:03:37 - PHP Notice: Undefined index: name in /var/www/example/public/vqmod/vqcache/vq2-catalog_controller_product_product.php on line 159
2013-01-10 12:03:44 - PHP Notice: Undefined index: name in /var/www/example/public/vqmod/vqcache/vq2-catalog_controller_product_product.php on line 159
2013-01-10 13:46:37 - PHP Warning: imagecreatetruecolor() [<a href='function.imagecreatetruecolor'>function.imagecreatetruecolor</a>]: Invalid image dimensions in /var/www/example/public/vqmod/vqcache/vq2-system_library_image.php on line 241
2013-01-10 13:46:37 - PHP Warning: imagecolorallocate() expects parameter 1 to be resource, boolean given in /var/www/example/public/vqmod/vqcache/vq2-system_library_image.php on line 249
2013-01-10 13:46:37 - PHP Warning: imagefilledrectangle() expects parameter 1 to be resource, boolean given in /var/www/example/public/vqmod/vqcache/vq2-system_library_image.php on line 252
2013-01-10 13:46:37 - PHP Warning: imagecopyresampled() expects parameter 1 to be resource, boolean given in /var/www/example/public/vqmod/vqcache/vq2-system_library_image.php on line 254
2013-01-10 13:46:37 - PHP Warning: imagecreatetruecolor() [<a href='function.imagecreatetruecolor'>function.imagecreatetruecolor</a>]: Invalid image dimensions in /var/www/example/public/vqmod/vqcache/vq2-system_library_image.php on line 241
2013-01-10 13:46:37 - PHP Warning: imagecolorallocate() expects parameter 1 to be resource, boolean given in /var/www/example/public/vqmod/vqcache/vq2-system_library_image.php on line 249
2013-01-10 13:46:37 - PHP Warning: imagefilledrectangle() expects parameter 1 to be resource, boolean given in /var/www/example/public/vqmod/vqcache/vq2-system_library_image.php on line 252
2013-01-10 13:46:37 - PHP Warning: imagecopyresampled() expects parameter 1 to be resource, boolean given in /var/www/example/public/vqmod/vqcache/vq2-system_library_image.php on line 254
完整代码：在Jay的帮助下
$this->data['log'] = file_get_contents($file, FILE_USE_INCLUDE_PATH, null);
替换为：
$input = file_get_contents($file, FILE_USE_INCLUDE_PATH, null);
$temp = preg_replace('~\d{4}-\d\d-\d\d \d\d?:\d\d:\d\d - ~', '', $input);
$this->data['log'] = implode(PHP_EOL, array_unique(explode(PHP_EOL, $temp)));
vqmod
<file name="admin/controller/tool/error_log.php">
<operation>
<search position="before"><![CDATA[
$this->data['clear'] = $this->url->link('tool/error_log/clear', 'token=' . $this->session->data['token'], 'SSL');
]]></search>
<add><![CDATA[
$this->data['action'] = $this->url->link('tool/error_log', 'token=' . $this->session->data['token'], 'SSL');
]]></add>
</operation>
<operation>
<search position="after"><![CDATA[
$this->data['log'] = file_get_contents($file, FILE_USE_INCLUDE_PATH, null);
]]></search>
<add><![CDATA[
if (!isset($this->request->post['unique'])){
$this->data['unique'] = '';
} else {
$this->data['unique'] = $this->request->post['unique'];
$temp = preg_replace('~\d{4}-\d\d-\d\d \d\d?:\d\d:\d\d - ~', '', $this->data['log']);
$this->data['log'] = implode(PHP_EOL, array_unique(explode(PHP_EOL, $temp)));
}
]]></add>
</operation>
</file>
<file name="admin/view/template/tool/error_log.tpl">
<operation>
<search position="after"><![CDATA[
$button_clear
]]></search>
<add><![CDATA[
<form action="<?php echo $action; ?>" method="post" class="buttons">
<label>
<input type="checkbox" name="unique" onchange="this.form.submit();" value="1" <?php if($unique){ echo ' checked="checked"'; } ?> /> Unique
</label>
</form>
]]></add>
</operation>
</file>
答案 0 :(得分：2)
这是一种非常简单的方法。将错误日志文本设置为$input，然后使用
$temp = preg_replace('~\d{4}-\d\d-\d\d \d\d?:\d\d:\d\d - ~', '', $input);
$output = implode(PHP_EOL, array_unique(explode(PHP_EOL, $temp)));
echo $output;
答案 1 :(得分：1)
仅使用此代码行获取唯一错误行
$errors = array();
foreach(file($file)) as $error_line) {
$regex = '/^([0-9]{4}-[0-9]{2}-[0-9]{2}\s[0-9]{2}:[0-9]{2}:[0-9]{2})\s-\s(.+)$/';
preg_match($regex, $error_line, $match);
$hash = md5($match[2]);
if (!isset($errors[$hash])) {
$errors[$hash] = array(
'error_line' => $match[2],
'times' = array(
$match[1],
),
);
} else {
$errors[$hash]['times'][] = $match[1];
}
}