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{"id":4549,"date":"2022-08-02T10:54:21","date_gmt":"2022-08-02T10:54:21","guid":{"rendered":"https:\/\/www.wikitechy.com\/interview-questions\/?p=4549"},"modified":"2022-08-02T10:54:34","modified_gmt":"2022-08-02T10:54:34","slug":"what-are-the-types-of-errors-in-php","status":"publish","type":"post","link":"https:\/\/www.wikitechy.com\/interview-questions\/php\/what-are-the-types-of-errors-in-php\/","title":{"rendered":"What are the types of errors in PHP ?"},"content":{"rendered":"<ul>\n<li style=\"text-align: justify;\">In a programmer, error is a mistake that may be caused by writing incorrect code or incorrect syntax.<\/li>\n<li style=\"text-align: justify;\">An error message is displayed on your browser containing the filename along with a message describing the error, location and the line number in which error has occurred.<\/li>\n<li style=\"text-align: justify;\">In PHP there are various types of errors that contains basically four main types of errors, they are\n<ul>\n<li>Syntax Error or Parse Error<\/li>\n<li>Fatal Error<\/li>\n<li>Warning Error<\/li>\n<li>Notice Error<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p style=\"text-align: justify;\"><img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone size-full wp-image-4550\" src=\"https:\/\/www.wikitechy.com\/interview-questions\/wp-content\/uploads\/2022\/08\/types-of-errors.png\" alt=\"\" width=\"1756\" height=\"849\" srcset=\"https:\/\/www.wikitechy.com\/interview-questions\/wp-content\/uploads\/2022\/08\/types-of-errors.png 1756w, https:\/\/www.wikitechy.com\/interview-questions\/wp-content\/uploads\/2022\/08\/types-of-errors-300x145.png 300w, https:\/\/www.wikitechy.com\/interview-questions\/wp-content\/uploads\/2022\/08\/types-of-errors-1024x495.png 1024w, https:\/\/www.wikitechy.com\/interview-questions\/wp-content\/uploads\/2022\/08\/types-of-errors-768x371.png 768w, https:\/\/www.wikitechy.com\/interview-questions\/wp-content\/uploads\/2022\/08\/types-of-errors-1536x743.png 1536w, https:\/\/www.wikitechy.com\/interview-questions\/wp-content\/uploads\/2022\/08\/types-of-errors-390x189.png 390w, https:\/\/www.wikitechy.com\/interview-questions\/wp-content\/uploads\/2022\/08\/types-of-errors-820x396.png 820w, https:\/\/www.wikitechy.com\/interview-questions\/wp-content\/uploads\/2022\/08\/types-of-errors-1180x571.png 1180w\" sizes=\"(max-width: 1756px) 100vw, 1756px\" \/><\/p>\n<h2 id=\"syntax-error-or-parse-error\" style=\"text-align: justify;\">Syntax Error or Parse Error<\/h2>\n<ul style=\"text-align: justify;\">\n<li>A syntax error is a mistake in the syntax of source code, which can be done by programmers due to their lack of knowledge or concern.<\/li>\n<li>At compile time compiler is used to catch the syntax error.<\/li>\n<li>Due to common reasons these errors can occur like missing semicolon, unclosed quotes, or unclosed brackets, extra or missing parentheses and many more.<\/li>\n<li>While compiling the program syntax error can be caught by the compiler and gives a syntax error or parse error message.<\/li>\n<\/ul>\n<h3 id=\"sample-code\" style=\"text-align: justify;\">Sample Code<\/h3>\n<div class=\"code-embed-wrapper\"> <div class=\"code-embed-infos\"> <\/div> <pre class=\"language-php code-embed-pre line-numbers\"  data-start=\"1\" data-line-offset=\"0\"><code class=\"language-php code-embed-code\">&lt;?php  <br\/>    \/*------------------syntax error-------------------*\/  <br\/>    echo &quot;Venkat: Hie! I&#039;m Venkat. &lt;\/br&gt;&quot;;  <br\/>    echo &quot;Lokesh: I&#039;m Lokesh. How are you?&quot;  <br\/>    echo &quot;Venkat: I&#039;m good! and you?&quot;;  <br\/>    echo &quot;Lokesh: I&#039;m also good&quot;;  <br\/>?&gt;  <\/code><\/pre> <\/div>\n<h3 id=\"output\" style=\"text-align: justify;\">Output<\/h3>\n<p style=\"text-align: justify;\"><img decoding=\"async\" class=\"alignnone size-full wp-image-4551\" src=\"https:\/\/www.wikitechy.com\/interview-questions\/wp-content\/uploads\/2022\/08\/syntax-error.png\" alt=\"\" width=\"1427\" height=\"163\" srcset=\"https:\/\/www.wikitechy.com\/interview-questions\/wp-content\/uploads\/2022\/08\/syntax-error.png 1427w, https:\/\/www.wikitechy.com\/interview-questions\/wp-content\/uploads\/2022\/08\/syntax-error-300x34.png 300w, https:\/\/www.wikitechy.com\/interview-questions\/wp-content\/uploads\/2022\/08\/syntax-error-1024x117.png 1024w, https:\/\/www.wikitechy.com\/interview-questions\/wp-content\/uploads\/2022\/08\/syntax-error-768x88.png 768w, https:\/\/www.wikitechy.com\/interview-questions\/wp-content\/uploads\/2022\/08\/syntax-error-390x45.png 390w, https:\/\/www.wikitechy.com\/interview-questions\/wp-content\/uploads\/2022\/08\/syntax-error-820x94.png 820w, https:\/\/www.wikitechy.com\/interview-questions\/wp-content\/uploads\/2022\/08\/syntax-error-1180x135.png 1180w\" sizes=\"(max-width: 1427px) 100vw, 1427px\" \/><\/p>\n<h2 id=\"fatal-error\" style=\"text-align: justify;\">Fatal Error<\/h2>\n<ul style=\"text-align: justify;\">\n<li>Fatal error is another type of error, which is occurred due to the use of undefined function.<\/li>\n<li>The PHP compiler understands the PHP code and also recognizes the undefined function.<\/li>\n<li>PHP compiler generates a fatal error, when a function is called without providing its definition.<\/li>\n<\/ul>\n<h3 id=\"sample-code-2\" style=\"text-align: justify;\">Sample Code<\/h3>\n<div class=\"code-embed-wrapper\"> <div class=\"code-embed-infos\"> <\/div> <pre class=\"language-php code-embed-pre line-numbers\"  data-start=\"1\" data-line-offset=\"0\"><code class=\"language-php code-embed-code\">&lt;?php  <br\/>    \/*------------------fatal error-------------------*\/  <br\/>    function add($f1, $f2) {  <br\/>        $sum = $f1 + $f2;  <br\/>        echo &quot;Addition:&quot; . $sum;  <br\/>    }  <br\/>      <br\/>    $f1 = 23;  <br\/>    $f2 = 56;  <br\/>      <br\/>    \/\/call the function that is not defined  <br\/>    \/\/Generate fatal error  <br\/>    catch_fatal_error();  <br\/>    \/\/echo &quot;Fatal Error&quot;;     <br\/>?&gt;  <\/code><\/pre> <\/div>\n<h3 id=\"output-2\" style=\"text-align: justify;\">Output<\/h3>\n<p style=\"text-align: justify;\"><img decoding=\"async\" class=\"alignnone size-full wp-image-4552\" src=\"https:\/\/www.wikitechy.com\/interview-questions\/wp-content\/uploads\/2022\/08\/fatal-error.png\" alt=\"\" width=\"1425\" height=\"158\" srcset=\"https:\/\/www.wikitechy.com\/interview-questions\/wp-content\/uploads\/2022\/08\/fatal-error.png 1425w, https:\/\/www.wikitechy.com\/interview-questions\/wp-content\/uploads\/2022\/08\/fatal-error-300x33.png 300w, https:\/\/www.wikitechy.com\/interview-questions\/wp-content\/uploads\/2022\/08\/fatal-error-1024x114.png 1024w, https:\/\/www.wikitechy.com\/interview-questions\/wp-content\/uploads\/2022\/08\/fatal-error-768x85.png 768w, https:\/\/www.wikitechy.com\/interview-questions\/wp-content\/uploads\/2022\/08\/fatal-error-390x43.png 390w, https:\/\/www.wikitechy.com\/interview-questions\/wp-content\/uploads\/2022\/08\/fatal-error-820x91.png 820w, https:\/\/www.wikitechy.com\/interview-questions\/wp-content\/uploads\/2022\/08\/fatal-error-1180x131.png 1180w\" sizes=\"(max-width: 1425px) 100vw, 1425px\" \/><\/p>\n<h3 id=\"warning-error\" style=\"text-align: justify;\">Warning Error<\/h3>\n<ul style=\"text-align: justify;\">\n<li>When the programmer tries to include a missing file there warning error is generated.<\/li>\n<li>The PHP function calls that missing file which does not exist and warning error\u00a0does not stop\/prevent the execution of the program.<\/li>\n<\/ul>\n<h3 id=\"sample-code-3\" style=\"text-align: justify;\">Sample Code<\/h3>\n<div class=\"code-embed-wrapper\"> <div class=\"code-embed-infos\"> <\/div> <pre class=\"language-php code-embed-pre line-numbers\"  data-start=\"1\" data-line-offset=\"0\"><code class=\"language-php code-embed-code\">&lt;?php  <br\/>    \/*-------------------warning error------------------*\/  <br\/>    $cmpny = &#039;Wikitechy&#039;;  <br\/>    echo &quot;Warning Error: &quot;;  <br\/>      <br\/>    \/\/include a file in the code  <br\/>    include (&#039;jtp.php&#039;);      <br\/>?&gt;<\/code><\/pre> <\/div>\n<h3 id=\"output-3\" style=\"text-align: justify;\">Output<\/h3>\n<p style=\"text-align: justify;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-4553\" src=\"https:\/\/www.wikitechy.com\/interview-questions\/wp-content\/uploads\/2022\/08\/warning-error.png\" alt=\"\" width=\"1434\" height=\"323\" srcset=\"https:\/\/www.wikitechy.com\/interview-questions\/wp-content\/uploads\/2022\/08\/warning-error.png 1434w, https:\/\/www.wikitechy.com\/interview-questions\/wp-content\/uploads\/2022\/08\/warning-error-300x68.png 300w, https:\/\/www.wikitechy.com\/interview-questions\/wp-content\/uploads\/2022\/08\/warning-error-1024x231.png 1024w, https:\/\/www.wikitechy.com\/interview-questions\/wp-content\/uploads\/2022\/08\/warning-error-768x173.png 768w, https:\/\/www.wikitechy.com\/interview-questions\/wp-content\/uploads\/2022\/08\/warning-error-390x88.png 390w, https:\/\/www.wikitechy.com\/interview-questions\/wp-content\/uploads\/2022\/08\/warning-error-820x185.png 820w, https:\/\/www.wikitechy.com\/interview-questions\/wp-content\/uploads\/2022\/08\/warning-error-1180x266.png 1180w\" sizes=\"(max-width: 1434px) 100vw, 1434px\" \/><\/p>\n<h2 id=\"notice-error\" style=\"text-align: justify;\">Notice Error<\/h2>\n<ul style=\"text-align: justify;\">\n<li>Notice error is also same as warning error, when program contains something wrong, the notice error occurs.<\/li>\n<li>Including\u00a0a notice error, it allows\/continue the execution of the program.<\/li>\n<li>Notice error does not prevent the execution of the code and generally it occurs when we try to use or access a variable which is undefined.<\/li>\n<\/ul>\n<h3 id=\"sample-code-4\" style=\"text-align: justify;\">Sample Code<\/h3>\n<div class=\"code-embed-wrapper\"> <div class=\"code-embed-infos\"> <\/div> <pre class=\"language-php code-embed-pre line-numbers\"  data-start=\"1\" data-line-offset=\"0\"><code class=\"language-php code-embed-code\">&lt;?php  <br\/>    \/*------------------notice error-------------------*\/  <br\/>    $telecom = &quot;Airtel&quot;;  <br\/>    echo $telecom;  <br\/>    echo $automobile;  <br\/>?&gt;  <\/code><\/pre> <\/div>\n<h3 id=\"output-4\" style=\"text-align: justify;\">Output<\/h3>\n<p style=\"text-align: justify;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-4554\" src=\"https:\/\/www.wikitechy.com\/interview-questions\/wp-content\/uploads\/2022\/08\/notice-error.png\" alt=\"\" width=\"1434\" height=\"201\" srcset=\"https:\/\/www.wikitechy.com\/interview-questions\/wp-content\/uploads\/2022\/08\/notice-error.png 1434w, https:\/\/www.wikitechy.com\/interview-questions\/wp-content\/uploads\/2022\/08\/notice-error-300x42.png 300w, https:\/\/www.wikitechy.com\/interview-questions\/wp-content\/uploads\/2022\/08\/notice-error-1024x144.png 1024w, https:\/\/www.wikitechy.com\/interview-questions\/wp-content\/uploads\/2022\/08\/notice-error-768x108.png 768w, https:\/\/www.wikitechy.com\/interview-questions\/wp-content\/uploads\/2022\/08\/notice-error-390x55.png 390w, https:\/\/www.wikitechy.com\/interview-questions\/wp-content\/uploads\/2022\/08\/notice-error-820x115.png 820w, https:\/\/www.wikitechy.com\/interview-questions\/wp-content\/uploads\/2022\/08\/notice-error-1180x165.png 1180w\" sizes=\"(max-width: 1434px) 100vw, 1434px\" \/><\/p>\n<p style=\"text-align: justify;\">\n","protected":false},"excerpt":{"rendered":"<p>In a programmer, error is a mistake that may be caused by writing incorrect code or incorrect syntax. An error message is displayed on your browser containing the filename along with a message describing the error, location and the line number in which error has occurred. In PHP there are various types of errors that [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"passster_activate_protection":false,"passster_protect_child_pages":"","passster_protection_type":"password","passster_password":"","passster_activate_overwrite_defaults":"","passster_headline":"","passster_instruction":"","passster_placeholder":"","passster_button":"","passster_id":"","passster_activate_misc_settings":"","passster_redirect_url":"","passster_hide":"no","passster_area_shortcode":"","gtb_hide_title":false,"gtb_wrap_title":false,"gtb_class_title":"","gtb_remove_headerfooter":false,"footnotes":""},"categories":[8182],"tags":[17702,17708,17698,17699,17701,17703,17700,17704,17707,17705,17706],"class_list":["post-4549","post","type-post","status-publish","format-standard","hentry","category-php","tag-how-many-types-of-error-in-php","tag-how-to-fix-php-error","tag-php-errors","tag-types-of-errors","tag-types-of-errors-in-php","tag-what-are-the-different-types-of-errors-in-php","tag-what-are-the-types-of-errors-in-php","tag-what-is-error-in-php","tag-what-is-fatal-error-in-php","tag-what-is-parse-error-in-php","tag-what-is-warning-error-in-php"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What are the types of errors in PHP ? - Types of Errors in PHP<\/title>\n<meta name=\"description\" content=\"What are the types of errors in PHP ? - In a program error is a mistake that may be caused by writing incorrect code or incorrect syntax.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wikitechy.com\/interview-questions\/php\/what-are-the-types-of-errors-in-php\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What are the types of errors in PHP ? - Types of Errors in PHP\" \/>\n<meta property=\"og:description\" content=\"What are the types of errors in PHP ? - In a program error is a mistake that may be caused by writing incorrect code or incorrect syntax.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.wikitechy.com\/interview-questions\/php\/what-are-the-types-of-errors-in-php\/\" \/>\n<meta property=\"og:site_name\" content=\"Wikitechy\" \/>\n<meta property=\"article:published_time\" content=\"2022-08-02T10:54:21+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2022-08-02T10:54:34+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.wikitechy.com\/interview-questions\/wp-content\/uploads\/2022\/08\/types-of-errors.png\" \/>\n<meta name=\"author\" content=\"webmaster\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"webmaster\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.wikitechy.com\/interview-questions\/php\/what-are-the-types-of-errors-in-php\/\",\"url\":\"https:\/\/www.wikitechy.com\/interview-questions\/php\/what-are-the-types-of-errors-in-php\/\",\"name\":\"What are the types of errors in PHP ? 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